diff --git a/Strategies/Standard/STR0003/STR0003.lua b/Strategies/Standard/STR0003/STR0003.lua
index 6a813ca..1af1510 100644
--- a/Strategies/Standard/STR0003/STR0003.lua
+++ b/Strategies/Standard/STR0003/STR0003.lua
@@ -277,6 +277,13 @@ function STR0003.Make( bAddMachining, Proc, Part, CustomParameters)
       dExtendAfterTail = 10000
    end
 
+   -- eventuali punti di spezzatura
+   local FeatureSplittingPoints = FeatureLib.GetFeatureSplittingPoints( Proc, Part)
+   local bIsSplitFeature = false
+   if #FeatureSplittingPoints > 0 then
+      bIsSplitFeature = true
+   end
+
    -- altezza tasca
    local dPocketHeight = 0
    if Proc.Topology.sFamily == 'Tunnel' then
@@ -287,7 +294,7 @@ function STR0003.Make( bAddMachining, Proc, Part, CustomParameters)
 
    -- lama - calcolo lavorazioni
    local Cutting = {}
-   local OptionalParameters = { bForceLongcutBlade = Strategy.Parameters.bForceLongcutBlade, dExtendAfterTail = dExtendAfterTail, dPocketHeight = dPocketHeight}
+   local OptionalParameters = { bForceLongcutBlade = Strategy.Parameters.bForceLongcutBlade, dExtendAfterTail = dExtendAfterTail, dPocketHeight = dPocketHeight, bIsSplitFeature = bIsSplitFeature}
    if Proc.Topology.sFamily == 'Tunnel' then
       OptionalParameters.bOppositeToolDirection = true
       Cutting = SlotByBlade.Make( Proc, Part, Proc.MainFaces.LongFaces[1], Proc.MainFaces.LongFaces[1].MainEdges.OppositeEdges[1], OptionalParameters)
@@ -324,8 +331,7 @@ function STR0003.Make( bAddMachining, Proc, Part, CustomParameters)
    -- lama - lavorazioni raggruppate in unica lista
    Blade.Result.Sorted = MergeResults( Blade.Result)
    -- lama - aggiunta eventuali lavorazioni splittate
-   local FeatureSplittingPoints = FeatureLib.GetFeatureSplittingPoints( Proc, Part)
-   if #FeatureSplittingPoints > 0 then
+   if bIsSplitFeature then
       Blade.Result.Sorted = MachiningLib.GetSplitMachinings( Blade.Result.Sorted, FeatureSplittingPoints, Part)
    end
    -- lama - nessuna lavorazione successiva - aggiunta lavorazioni e calcolo risultati
@@ -376,18 +382,18 @@ function STR0003.Make( bAddMachining, Proc, Part, CustomParameters)
          ( Proc.MainFaces.LongFaces[1].MainEdges.BottomEdge.dLength > 3 * Blade.Result.Bottom[1].dBladeMarkLength - 10 * GEO.EPS_SMALL) then
 
          if not Proc.MainFaces.LongFaces[1].MainEdges.BottomEdge.bIsStartOpen then
-            local OptionalParameters = { sSideToMachine = 'Start', dLengthToMachine = Blade.Result.Bottom[1].dBladeMarkLength, dExtendAfterTail = dExtendAfterTail, dPocketHeight = dPocketHeight}
+            local OptionalParameters = { sSideToMachine = 'Start', dLengthToMachine = Blade.Result.Bottom[1].dBladeMarkLength, dExtendAfterTail = dExtendAfterTail, dPocketHeight = dPocketHeight, bIsSplitFeature = bIsSplitFeature}
             Mortising = SlotByChainSaw.Make( Proc, Part, Proc.MainFaces.LongFaces[1], Proc.MainFaces.LongFaces[1].MainEdges.BottomEdge, OptionalParameters)
             Chainsaw.AddResult( Mortising)
          end
          if not Proc.MainFaces.LongFaces[1].MainEdges.BottomEdge.bIsEndOpen then
-            local OptionalParameters = { sSideToMachine = 'End', dLengthToMachine = Blade.Result.Bottom[1].dBladeMarkLength, dExtendAfterTail = dExtendAfterTail, dPocketHeight = dPocketHeight}
+            local OptionalParameters = { sSideToMachine = 'End', dLengthToMachine = Blade.Result.Bottom[1].dBladeMarkLength, dExtendAfterTail = dExtendAfterTail, dPocketHeight = dPocketHeight, bIsSplitFeature = bIsSplitFeature}
             Mortising = SlotByChainSaw.Make( Proc, Part, Proc.MainFaces.LongFaces[1], Proc.MainFaces.LongFaces[1].MainEdges.BottomEdge, OptionalParameters)
             Chainsaw.AddResult( Mortising)
          end
       -- si lavora tutto il fondo
       else
-         local OptionalParameters = { dMaxElev = Blade.Result.Bottom[1].dResidualDepth + BeamData.CUT_EXTRA, dExtendAfterTail = dExtendAfterTail, dPocketHeight = dPocketHeight}
+         local OptionalParameters = { dMaxElev = Blade.Result.Bottom[1].dResidualDepth + BeamData.CUT_EXTRA, dExtendAfterTail = dExtendAfterTail, dPocketHeight = dPocketHeight, bIsSplitFeature = bIsSplitFeature}
          Mortising = SlotByChainSaw.Make( Proc, Part, Proc.MainFaces.LongFaces[1], Proc.MainFaces.LongFaces[1].MainEdges.BottomEdge, OptionalParameters)
          Chainsaw.AddResult( Mortising)
       end
@@ -396,10 +402,10 @@ function STR0003.Make( bAddMachining, Proc, Part, CustomParameters)
          -- si lavora solamente l'impronta lama sul fondo
          if ( #Blade.Result.Side > 0) and Blade.Result.Side[1].dResidualDepth < 10 * GEO.EPS_SMALL then
             if ( Proc.MainFaces.LongFaces[1].MainEdges.BottomEdge.bIsStartOpen and Proc.MainFaces.LongFaces[1].MainEdges.SideEdges[1].dLength > 3 * Blade.Result.Side[1].dBladeMarkLength - 10 * GEO.EPS_SMALL) then
-               local OptionalParameters = { sSideToMachine = 'End', dLengthToMachine = Blade.Result.Side[1].dBladeMarkLength, dExtendAfterTail = dExtendAfterTail, dPocketHeight = dPocketHeight, bOppositeToolDirection = true}
+               local OptionalParameters = { sSideToMachine = 'End', dLengthToMachine = Blade.Result.Side[1].dBladeMarkLength, dExtendAfterTail = dExtendAfterTail, dPocketHeight = dPocketHeight, bOppositeToolDirection = true, bIsSplitFeature = bIsSplitFeature}
                Mortising = SlotByChainSaw.Make( Proc, Part, Proc.MainFaces.LongFaces[1], Proc.MainFaces.LongFaces[1].MainEdges.SideEdges[1], OptionalParameters)
             elseif ( Proc.MainFaces.LongFaces[1].MainEdges.BottomEdge.bIsEndOpen and Proc.MainFaces.LongFaces[1].MainEdges.SideEdges[2].dLength > 3 * Blade.Result.Side[1].dBladeMarkLength - 10 * GEO.EPS_SMALL) then
-               local OptionalParameters = { sSideToMachine = 'Start', dLengthToMachine = Blade.Result.Side[1].dBladeMarkLength, dExtendAfterTail = dExtendAfterTail, dPocketHeight = dPocketHeight, bOppositeToolDirection = true}
+               local OptionalParameters = { sSideToMachine = 'Start', dLengthToMachine = Blade.Result.Side[1].dBladeMarkLength, dExtendAfterTail = dExtendAfterTail, dPocketHeight = dPocketHeight, bOppositeToolDirection = true, bIsSplitFeature = bIsSplitFeature}
                Mortising = SlotByChainSaw.Make( Proc, Part, Proc.MainFaces.LongFaces[1], Proc.MainFaces.LongFaces[1].MainEdges.SideEdges[2], OptionalParameters)
             end
          -- si lavora tutto il lato
@@ -411,10 +417,10 @@ function STR0003.Make( bAddMachining, Proc, Part, CustomParameters)
                dBladeResidualDepth = Blade.Result.Bottom[1].dResidualDepth
             end
             if Proc.MainFaces.LongFaces[1].MainEdges.BottomEdge.bIsStartOpen then
-               local OptionalParameters = { dMaxElev = dBladeResidualDepth + BeamData.CUT_EXTRA, dExtendAfterTail = dExtendAfterTail, dPocketHeight = dPocketHeight, bOppositeToolDirection = true}
+               local OptionalParameters = { dMaxElev = dBladeResidualDepth + BeamData.CUT_EXTRA, dExtendAfterTail = dExtendAfterTail, dPocketHeight = dPocketHeight, bOppositeToolDirection = true, bIsSplitFeature = bIsSplitFeature}
                Mortising = SlotByChainSaw.Make( Proc, Part, Proc.MainFaces.LongFaces[1], Proc.MainFaces.LongFaces[1].MainEdges.SideEdges[1], OptionalParameters)
             elseif Proc.MainFaces.LongFaces[1].MainEdges.BottomEdge.bIsEndOpen then
-               local OptionalParameters = { dMaxElev = dBladeResidualDepth + BeamData.CUT_EXTRA, dExtendAfterTail = dExtendAfterTail, dPocketHeight = dPocketHeight, bOppositeToolDirection = true}
+               local OptionalParameters = { dMaxElev = dBladeResidualDepth + BeamData.CUT_EXTRA, dExtendAfterTail = dExtendAfterTail, dPocketHeight = dPocketHeight, bOppositeToolDirection = true, bIsSplitFeature = bIsSplitFeature}
                Mortising = SlotByChainSaw.Make( Proc, Part, Proc.MainFaces.LongFaces[1], Proc.MainFaces.LongFaces[1].MainEdges.SideEdges[2], OptionalParameters)
             end
          end
@@ -423,7 +429,7 @@ function STR0003.Make( bAddMachining, Proc, Part, CustomParameters)
    elseif Proc.Topology.sName == 'Groove-3-Through' then
       if Blade.Result.Bottom[1].dResidualDepth > 10 * GEO.EPS_SMALL then
          -- si lavora tutto il fondo
-         local OptionalParameters = { dMaxElev = Blade.Result.Bottom[1].dResidualDepth + BeamData.CUT_EXTRA, dExtendAfterTail = dExtendAfterTail, dPocketHeight = dPocketHeight}
+         local OptionalParameters = { dMaxElev = Blade.Result.Bottom[1].dResidualDepth + BeamData.CUT_EXTRA, dExtendAfterTail = dExtendAfterTail, dPocketHeight = dPocketHeight, bIsSplitFeature = bIsSplitFeature}
          Mortising = SlotByChainSaw.Make( Proc, Part, Proc.MainFaces.LongFaces[1], Proc.MainFaces.LongFaces[1].MainEdges.BottomEdge, OptionalParameters)
          Chainsaw.AddResult( Mortising)
          -- ancora materiale residuo - si lavorano i lati
@@ -432,16 +438,16 @@ function STR0003.Make( bAddMachining, Proc, Part, CustomParameters)
             if ( Blade.Result.Side[1].dResidualDepth < 10 * GEO.EPS_SMALL and Proc.MainFaces.LongFaces[1].MainEdges.SideEdges[1].dLength > 3 * Blade.Result.Side[1].dBladeMarkLength - 10 * GEO.EPS_SMALL) and
                ( Blade.Result.Side[2].dResidualDepth < 10 * GEO.EPS_SMALL and Proc.MainFaces.LongFaces[1].MainEdges.SideEdges[2].dLength > 3 * Blade.Result.Side[2].dBladeMarkLength - 10 * GEO.EPS_SMALL) then
                
-               local OptionalParameters = { sSideToMachine = 'End', dLengthToMachine = Blade.Result.Side[1].dBladeMarkLength, dExtendAfterTail = dExtendAfterTail, dPocketHeight = dPocketHeight, bOppositeToolDirection = true}
+               local OptionalParameters = { sSideToMachine = 'End', dLengthToMachine = Blade.Result.Side[1].dBladeMarkLength, dExtendAfterTail = dExtendAfterTail, dPocketHeight = dPocketHeight, bOppositeToolDirection = true, bIsSplitFeature = bIsSplitFeature}
                Mortising = SlotByChainSaw.Make( Proc, Part, Proc.MainFaces.LongFaces[1], Proc.MainFaces.LongFaces[1].MainEdges.SideEdges[1], OptionalParameters)
                Chainsaw.AddResult( Mortising)
                -- ancora materiale residuo - si lavora da entrambi i lati
                if Chainsaw.Result.Side[1].dResidualDepth > 10 * GEO.EPS_SMALL then
-                  local OptionalParameters = { bStopAtHalfElevation = true, sSideToMachine = 'End', dLengthToMachine = Blade.Result.Side[1].dBladeMarkLength, dExtendAfterTail = dExtendAfterTail, dPocketHeight = dPocketHeight, bOppositeToolDirection = true}
+                  local OptionalParameters = { bStopAtHalfElevation = true, sSideToMachine = 'End', dLengthToMachine = Blade.Result.Side[1].dBladeMarkLength, dExtendAfterTail = dExtendAfterTail, dPocketHeight = dPocketHeight, bOppositeToolDirection = true, bIsSplitFeature = bIsSplitFeature}
                   Mortising = SlotByChainSaw.Make( Proc, Part, Proc.MainFaces.LongFaces[1], Proc.MainFaces.LongFaces[1].MainEdges.SideEdges[1], OptionalParameters)
                   Chainsaw.AddResult( Mortising)
                   OptionalParameters = {}
-                  OptionalParameters = { bStopAtHalfElevation = true, sSideToMachine = 'Start', dLengthToMachine = Blade.Result.Side[2].dBladeMarkLength, dExtendAfterTail = dExtendAfterTail, dPocketHeight = dPocketHeight, bOppositeToolDirection = true}
+                  OptionalParameters = { bStopAtHalfElevation = true, sSideToMachine = 'Start', dLengthToMachine = Blade.Result.Side[2].dBladeMarkLength, dExtendAfterTail = dExtendAfterTail, dPocketHeight = dPocketHeight, bOppositeToolDirection = true, bIsSplitFeature = bIsSplitFeature}
                   Mortising = SlotByChainSaw.Make( Proc, Part, Proc.MainFaces.LongFaces[1], Proc.MainFaces.LongFaces[1].MainEdges.SideEdges[2], OptionalParameters)
                   Chainsaw.AddResult( Mortising)
                   -- lavorando dai due lati non c'è materiale residuo - si può eliminare la lavorazione del fondo
@@ -451,17 +457,17 @@ function STR0003.Make( bAddMachining, Proc, Part, CustomParameters)
                end
             -- si lavora tutto il lato
             else
-               local OptionalParameters = { dMaxElev = Blade.Result.Side[1].dResidualDepth + BeamData.CUT_EXTRA, dExtendAfterTail = dExtendAfterTail, dPocketHeight = dPocketHeight, bOppositeToolDirection = true}
+               local OptionalParameters = { dMaxElev = Blade.Result.Side[1].dResidualDepth + BeamData.CUT_EXTRA, dExtendAfterTail = dExtendAfterTail, dPocketHeight = dPocketHeight, bOppositeToolDirection = true, bIsSplitFeature = bIsSplitFeature}
                Mortising = SlotByChainSaw.Make( Proc, Part, Proc.MainFaces.LongFaces[1], Proc.MainFaces.LongFaces[1].MainEdges.SideEdges[1], OptionalParameters)
                Chainsaw.AddResult( Mortising)
                -- ancora materiale residuo - si lavora da entrambi i lati
                if Chainsaw.Result.Side[1].dResidualDepth > 10 * GEO.EPS_SMALL then
                   Chainsaw.Result.Side[1].bIsApplicable = false
-                  local OptionalParameters = { bStopAtHalfElevation = true, dMaxElev = Blade.Result.Side[1].dResidualDepth + BeamData.CUT_EXTRA, dExtendAfterTail = dExtendAfterTail, dPocketHeight = dPocketHeight, bOppositeToolDirection = true}
+                  local OptionalParameters = { bStopAtHalfElevation = true, dMaxElev = Blade.Result.Side[1].dResidualDepth + BeamData.CUT_EXTRA, dExtendAfterTail = dExtendAfterTail, dPocketHeight = dPocketHeight, bOppositeToolDirection = true, bIsSplitFeature = bIsSplitFeature}
                   Mortising = SlotByChainSaw.Make( Proc, Part, Proc.MainFaces.LongFaces[1], Proc.MainFaces.LongFaces[1].MainEdges.SideEdges[1], OptionalParameters)
                   Chainsaw.AddResult( Mortising)
                   OptionalParameters = {}
-                  OptionalParameters = { bStopAtHalfElevation = true, dMaxElev = Blade.Result.Side[2].dResidualDepth + BeamData.CUT_EXTRA, dExtendAfterTail = dExtendAfterTail, dPocketHeight = dPocketHeight, bOppositeToolDirection = true}
+                  OptionalParameters = { bStopAtHalfElevation = true, dMaxElev = Blade.Result.Side[2].dResidualDepth + BeamData.CUT_EXTRA, dExtendAfterTail = dExtendAfterTail, dPocketHeight = dPocketHeight, bOppositeToolDirection = true, bIsSplitFeature = bIsSplitFeature}
                   Mortising = SlotByChainSaw.Make( Proc, Part, Proc.MainFaces.LongFaces[1], Proc.MainFaces.LongFaces[1].MainEdges.SideEdges[2], OptionalParameters)
                   Chainsaw.AddResult( Mortising)
                   -- lavorando dai due lati non c'è materiale residuo - si può disabilitare la lavorazione del fondo
@@ -477,43 +483,43 @@ function STR0003.Make( bAddMachining, Proc, Part, CustomParameters)
       if ( Blade.Result.Opposite[1].dResidualDepth < 10 * GEO.EPS_SMALL and Proc.MainFaces.LongFaces[1].MainEdges.OppositeEdges[1].dLength > 3 * Blade.Result.Opposite[1].dBladeMarkLength - 10 * GEO.EPS_SMALL) and
          ( Blade.Result.Opposite[2].dResidualDepth < 10 * GEO.EPS_SMALL and Proc.MainFaces.LongFaces[1].MainEdges.OppositeEdges[2].dLength > 3 * Blade.Result.Opposite[2].dBladeMarkLength - 10 * GEO.EPS_SMALL) then
          
-         local OptionalParameters = { sSideToMachine = 'Start', dLengthToMachine = Blade.Result.Opposite[1].dBladeMarkLength, dExtendAfterTail = dExtendAfterTail, dPocketHeight = dPocketHeight, bOppositeToolDirection = true}
+         local OptionalParameters = { sSideToMachine = 'Start', dLengthToMachine = Blade.Result.Opposite[1].dBladeMarkLength, dExtendAfterTail = dExtendAfterTail, dPocketHeight = dPocketHeight, bOppositeToolDirection = true, bIsSplitFeature = bIsSplitFeature}
          Mortising = SlotByChainSaw.Make( Proc, Part, Proc.MainFaces.LongFaces[1], Proc.MainFaces.LongFaces[1].MainEdges.OppositeEdges[1], OptionalParameters)
          Chainsaw.AddResult( Mortising)
          OptionalParameters = {}
-         OptionalParameters = { sSideToMachine = 'End', dLengthToMachine = Blade.Result.Opposite[2].dBladeMarkLength, dExtendAfterTail = dExtendAfterTail, dPocketHeight = dPocketHeight, bOppositeToolDirection = true}
+         OptionalParameters = { sSideToMachine = 'End', dLengthToMachine = Blade.Result.Opposite[2].dBladeMarkLength, dExtendAfterTail = dExtendAfterTail, dPocketHeight = dPocketHeight, bOppositeToolDirection = true, bIsSplitFeature = bIsSplitFeature}
          Mortising = SlotByChainSaw.Make( Proc, Part, Proc.MainFaces.LongFaces[1], Proc.MainFaces.LongFaces[1].MainEdges.OppositeEdges[1], OptionalParameters)
          Chainsaw.AddResult( Mortising)
          if Chainsaw.Result.Opposite[1].dResidualDepth > 10 * GEO.EPS_SMALL or Chainsaw.Result.Opposite[2].dResidualDepth > 10 * GEO.EPS_SMALL then
             Chainsaw.Result.Opposite[1].bIsApplicable = false
             Chainsaw.Result.Opposite[2].bIsApplicable = false
-            local OptionalParameters = { bStopAtHalfElevation = true, sSideToMachine = 'Start', dLengthToMachine = Blade.Result.Opposite[1].dBladeMarkLength, dExtendAfterTail = dExtendAfterTail, dPocketHeight = dPocketHeight, bOppositeToolDirection = true}
+            local OptionalParameters = { bStopAtHalfElevation = true, sSideToMachine = 'Start', dLengthToMachine = Blade.Result.Opposite[1].dBladeMarkLength, dExtendAfterTail = dExtendAfterTail, dPocketHeight = dPocketHeight, bOppositeToolDirection = true, bIsSplitFeature = bIsSplitFeature}
             Mortising = SlotByChainSaw.Make( Proc, Part, Proc.MainFaces.LongFaces[1], Proc.MainFaces.LongFaces[1].MainEdges.OppositeEdges[1], OptionalParameters)
             Chainsaw.AddResult( Mortising)
             OptionalParameters = {}
-            OptionalParameters = { bStopAtHalfElevation = true, sSideToMachine = 'End', dLengthToMachine = Blade.Result.Opposite[1].dBladeMarkLength, dExtendAfterTail = dExtendAfterTail, dPocketHeight = dPocketHeight, bOppositeToolDirection = true}
+            OptionalParameters = { bStopAtHalfElevation = true, sSideToMachine = 'End', dLengthToMachine = Blade.Result.Opposite[1].dBladeMarkLength, dExtendAfterTail = dExtendAfterTail, dPocketHeight = dPocketHeight, bOppositeToolDirection = true, bIsSplitFeature = bIsSplitFeature}
             Mortising = SlotByChainSaw.Make( Proc, Part, Proc.MainFaces.LongFaces[1], Proc.MainFaces.LongFaces[1].MainEdges.OppositeEdges[1], OptionalParameters)
             Chainsaw.AddResult( Mortising)
             OptionalParameters = {}
-            OptionalParameters = { bStopAtHalfElevation = true, sSideToMachine = 'Start', dLengthToMachine = Blade.Result.Opposite[2].dBladeMarkLength, dExtendAfterTail = dExtendAfterTail, dPocketHeight = dPocketHeight, bOppositeToolDirection = true}
+            OptionalParameters = { bStopAtHalfElevation = true, sSideToMachine = 'Start', dLengthToMachine = Blade.Result.Opposite[2].dBladeMarkLength, dExtendAfterTail = dExtendAfterTail, dPocketHeight = dPocketHeight, bOppositeToolDirection = true, bIsSplitFeature = bIsSplitFeature}
             Mortising = SlotByChainSaw.Make( Proc, Part, Proc.MainFaces.LongFaces[1], Proc.MainFaces.LongFaces[1].MainEdges.OppositeEdges[2], OptionalParameters)
             Chainsaw.AddResult( Mortising)
             OptionalParameters = {}
-            OptionalParameters = { bStopAtHalfElevation = true, sSideToMachine = 'End', dLengthToMachine = Blade.Result.Opposite[2].dBladeMarkLength, dExtendAfterTail = dExtendAfterTail, dPocketHeight = dPocketHeight, bOppositeToolDirection = true}
+            OptionalParameters = { bStopAtHalfElevation = true, sSideToMachine = 'End', dLengthToMachine = Blade.Result.Opposite[2].dBladeMarkLength, dExtendAfterTail = dExtendAfterTail, dPocketHeight = dPocketHeight, bOppositeToolDirection = true, bIsSplitFeature = bIsSplitFeature}
             Mortising = SlotByChainSaw.Make( Proc, Part, Proc.MainFaces.LongFaces[1], Proc.MainFaces.LongFaces[1].MainEdges.OppositeEdges[2], OptionalParameters)
             Chainsaw.AddResult( Mortising)
          end
       else
-         local OptionalParameters = { dMaxElev = Blade.Result.Opposite[1].dResidualDepth + BeamData.CUT_EXTRA, dExtendAfterTail = dExtendAfterTail, dPocketHeight = dPocketHeight, bOppositeToolDirection = true}
+         local OptionalParameters = { dMaxElev = Blade.Result.Opposite[1].dResidualDepth + BeamData.CUT_EXTRA, dExtendAfterTail = dExtendAfterTail, dPocketHeight = dPocketHeight, bOppositeToolDirection = true, bIsSplitFeature = bIsSplitFeature}
          Mortising = SlotByChainSaw.Make( Proc, Part, Proc.MainFaces.LongFaces[1], Proc.MainFaces.LongFaces[1].MainEdges.OppositeEdges[1], OptionalParameters)
          Chainsaw.AddResult( Mortising)
          if Chainsaw.Result.Opposite[1].dResidualDepth > 10 * GEO.EPS_SMALL then
             Chainsaw.Result.Opposite[1].bIsApplicable = false
-            local OptionalParameters = { bStopAtHalfElevation = true, dMaxElev = Blade.Result.Opposite[1].dResidualDepth + BeamData.CUT_EXTRA, dExtendAfterTail = dExtendAfterTail, dPocketHeight = dPocketHeight, bOppositeToolDirection = true}
+            local OptionalParameters = { bStopAtHalfElevation = true, dMaxElev = Blade.Result.Opposite[1].dResidualDepth + BeamData.CUT_EXTRA, dExtendAfterTail = dExtendAfterTail, dPocketHeight = dPocketHeight, bOppositeToolDirection = true, bIsSplitFeature = bIsSplitFeature}
             Mortising = SlotByChainSaw.Make( Proc, Part, Proc.MainFaces.LongFaces[1], Proc.MainFaces.LongFaces[1].MainEdges.OppositeEdges[1], OptionalParameters)
             Chainsaw.AddResult( Mortising)
             OptionalParameters = {}
-            OptionalParameters = { bStopAtHalfElevation = true, dMaxElev = Blade.Result.Opposite[2].dResidualDepth + BeamData.CUT_EXTRA, dExtendAfterTail = dExtendAfterTail, dPocketHeight = dPocketHeight, bOppositeToolDirection = true}
+            OptionalParameters = { bStopAtHalfElevation = true, dMaxElev = Blade.Result.Opposite[2].dResidualDepth + BeamData.CUT_EXTRA, dExtendAfterTail = dExtendAfterTail, dPocketHeight = dPocketHeight, bOppositeToolDirection = true, bIsSplitFeature = bIsSplitFeature}
             Mortising = SlotByChainSaw.Make( Proc, Part, Proc.MainFaces.LongFaces[1], Proc.MainFaces.LongFaces[1].MainEdges.OppositeEdges[2], OptionalParameters)
             Chainsaw.AddResult( Mortising)
          end
@@ -522,7 +528,7 @@ function STR0003.Make( bAddMachining, Proc, Part, CustomParameters)
    -- sega a catena - lavorazioni raggruppate in unica lista
    Chainsaw.Result.Sorted = MergeResults( Chainsaw.Result)
    -- sega a catena - aggiunta eventuali lavorazioni splittate
-   if #FeatureSplittingPoints > 0 then
+   if bIsSplitFeature then
       Chainsaw.Result.Sorted = MachiningLib.GetSplitMachinings( Chainsaw.Result.Sorted, FeatureSplittingPoints, Part)
    end
 
diff --git a/Strategies/Standard/STR0004/STR0004.lua b/Strategies/Standard/STR0004/STR0004.lua
index 3885da2..7691488 100644
--- a/Strategies/Standard/STR0004/STR0004.lua
+++ b/Strategies/Standard/STR0004/STR0004.lua
@@ -159,11 +159,19 @@ function STR0004.Make( bAddMachining, Proc, Part, CustomParameters)
       return false, Strategy.Result
    end
 
+   -- calcolo estensione oltre la coda
    local dExtendAfterTail = Strategy.Parameters.dExtendAfterTail or max( Part.dDistanceToNextPiece - BeamData.CUT_EXTRA, 0)
    if MachiningLib.CanExtendAfterTail( Strategy.Parameters.sCanDamageNextPiece, Part) then
       dExtendAfterTail = 10000
    end
 
+   -- eventuali punti di spezzatura
+   local FeatureSplittingPoints = FeatureLib.GetFeatureSplittingPoints( Proc, Part)
+   local bIsSplitFeature = false
+   if #FeatureSplittingPoints > 0 then
+      bIsSplitFeature = true
+   end
+
    -- altezza tasca
    local dPocketHeight = 0
    if Proc.Topology.sFamily == 'Tunnel' then
@@ -174,7 +182,7 @@ function STR0004.Make( bAddMachining, Proc, Part, CustomParameters)
 
    -- calcolo lavorazioni
    local Mortising = {}
-   local OptionalParameters = { dExtendAfterTail = dExtendAfterTail, dPocketHeight = dPocketHeight}
+   local OptionalParameters = { dExtendAfterTail = dExtendAfterTail, dPocketHeight = dPocketHeight, bIsSplitFeature = bIsSplitFeature}
    if Proc.Topology.sName == 'Groove-4-Blind' or Proc.Topology.sName == 'Pocket-5-Blind' then
       -- si lavora tutto il fondo
       Mortising = SlotByChainSaw.Make( Proc, Part, Proc.MainFaces.LongFaces[1], Proc.MainFaces.LongFaces[1].MainEdges.BottomEdge, OptionalParameters)
@@ -192,22 +200,22 @@ function STR0004.Make( bAddMachining, Proc, Part, CustomParameters)
       end
    elseif Proc.Topology.sName == 'Groove-3-Through' then
       -- si lavora tutto il fondo
-      local OptionalParameters = { dExtendAfterTail = dExtendAfterTail, dPocketHeight = dPocketHeight}
+      local OptionalParameters = { dExtendAfterTail = dExtendAfterTail, dPocketHeight = dPocketHeight, bIsSplitFeature = bIsSplitFeature}
       Mortising = SlotByChainSaw.Make( Proc, Part, Proc.MainFaces.LongFaces[1], Proc.MainFaces.LongFaces[1].MainEdges.BottomEdge, OptionalParameters)
       Chainsaw.AddResult( Mortising)
       -- materiale residuo - si lavorano i lati
       if ( Chainsaw.Result.Bottom[1].dResidualDepth > 10 * GEO.EPS_SMALL or not Chainsaw.Result.Bottom[#Chainsaw.Result.Bottom].bIsApplicable) then
-         local OptionalParameters = { dExtendAfterTail = dExtendAfterTail, dPocketHeight = dPocketHeight, bOppositeToolDirection = true}
+         local OptionalParameters = { dExtendAfterTail = dExtendAfterTail, dPocketHeight = dPocketHeight, bOppositeToolDirection = true, bIsSplitFeature = bIsSplitFeature}
          Mortising = SlotByChainSaw.Make( Proc, Part, Proc.MainFaces.LongFaces[1], Proc.MainFaces.LongFaces[1].MainEdges.SideEdges[1], OptionalParameters)
          Chainsaw.AddResult( Mortising)
          -- ancora materiale residuo - si lavora da entrambi i lati
          if Chainsaw.Result.Side[1].dResidualDepth > 10 * GEO.EPS_SMALL then
             Chainsaw.Result.Side[1].bIsApplicable = false
-            local OptionalParameters = { bStopAtHalfElevation = true, dExtendAfterTail = dExtendAfterTail, dPocketHeight = dPocketHeight, bOppositeToolDirection = true}
+            local OptionalParameters = { bStopAtHalfElevation = true, dExtendAfterTail = dExtendAfterTail, dPocketHeight = dPocketHeight, bOppositeToolDirection = true, bIsSplitFeature = bIsSplitFeature}
             Mortising = SlotByChainSaw.Make( Proc, Part, Proc.MainFaces.LongFaces[1], Proc.MainFaces.LongFaces[1].MainEdges.SideEdges[1], OptionalParameters)
             Chainsaw.AddResult( Mortising)
             OptionalParameters = {}
-            OptionalParameters = { bStopAtHalfElevation = true, dExtendAfterTail = dExtendAfterTail, dPocketHeight = dPocketHeight, bOppositeToolDirection = true}
+            OptionalParameters = { bStopAtHalfElevation = true, dExtendAfterTail = dExtendAfterTail, dPocketHeight = dPocketHeight, bOppositeToolDirection = true, bIsSplitFeature = bIsSplitFeature}
             Mortising = SlotByChainSaw.Make( Proc, Part, Proc.MainFaces.LongFaces[1], Proc.MainFaces.LongFaces[1].MainEdges.SideEdges[2], OptionalParameters)
             Chainsaw.AddResult( Mortising)
             -- lavorando dai due lati non c'è materiale residuo - si può disabilitare la lavorazione del fondo
@@ -217,16 +225,16 @@ function STR0004.Make( bAddMachining, Proc, Part, CustomParameters)
          end
       end
    elseif Proc.Topology.sName == 'Tunnel-4-Through' then
-      local OptionalParameters = { dExtendAfterTail = dExtendAfterTail, dPocketHeight = dPocketHeight, bOppositeToolDirection = true}
+      local OptionalParameters = { dExtendAfterTail = dExtendAfterTail, dPocketHeight = dPocketHeight, bOppositeToolDirection = true, bIsSplitFeature = bIsSplitFeature}
       Mortising = SlotByChainSaw.Make( Proc, Part, Proc.MainFaces.LongFaces[1], Proc.MainFaces.LongFaces[1].MainEdges.OppositeEdges[1], OptionalParameters)
       Chainsaw.AddResult( Mortising)
       if Chainsaw.Result.Opposite[1].dResidualDepth > 10 * GEO.EPS_SMALL then
          Chainsaw.Result.Opposite[1].bIsApplicable = false
-         local OptionalParameters = { bStopAtHalfElevation = true, dExtendAfterTail = dExtendAfterTail, dPocketHeight = dPocketHeight, bOppositeToolDirection = true}
+         local OptionalParameters = { bStopAtHalfElevation = true, dExtendAfterTail = dExtendAfterTail, dPocketHeight = dPocketHeight, bOppositeToolDirection = true, bIsSplitFeature = bIsSplitFeature}
          SlotByChainSaw.Make( Proc, Part, Proc.MainFaces.LongFaces[1], Proc.MainFaces.LongFaces[1].MainEdges.OppositeEdges[1], OptionalParameters)
          Chainsaw.AddResult( Mortising)
          OptionalParameters = {}
-         OptionalParameters = { bStopAtHalfElevation = true, dExtendAfterTail = dExtendAfterTail, dPocketHeight = dPocketHeight, bOppositeToolDirection = true}
+         OptionalParameters = { bStopAtHalfElevation = true, dExtendAfterTail = dExtendAfterTail, dPocketHeight = dPocketHeight, bOppositeToolDirection = true, bIsSplitFeature = bIsSplitFeature}
          SlotByChainSaw.Make( Proc, Part, Proc.MainFaces.LongFaces[1], Proc.MainFaces.LongFaces[1].MainEdges.OppositeEdges[2], OptionalParameters)
          Chainsaw.AddResult( Mortising)
       end
@@ -251,8 +259,7 @@ function STR0004.Make( bAddMachining, Proc, Part, CustomParameters)
    end
 
    -- aggiunta eventuali lavorazioni splittate
-   local FeatureSplittingPoints = FeatureLib.GetFeatureSplittingPoints( Proc, Part)
-   if #FeatureSplittingPoints > 0 then
+   if bIsSplitFeature then
       Chainsaw.Result.Sorted = MachiningLib.GetSplitMachinings( Chainsaw.Result.Sorted, FeatureSplittingPoints, Part)
    end
 
diff --git a/Strategies/Standard/STR0005/STR0005.lua b/Strategies/Standard/STR0005/STR0005.lua
index 1123ed4..e80bea3 100644
--- a/Strategies/Standard/STR0005/STR0005.lua
+++ b/Strategies/Standard/STR0005/STR0005.lua
@@ -143,7 +143,7 @@ function STR0005.Make( bAddMachining, Proc, Part, CustomParameters)
       -- eventuali punti di spezzatura
       local FeatureSplittingPoints = FeatureLib.GetFeatureSplittingPoints( Proc, Part)
       local bIsSplitFeature = false
-      if #FeatureSplittingPoints then
+      if #FeatureSplittingPoints > 0 then
          bIsSplitFeature = true
       end