diff --git a/LuaLibs/ProcessSplit.lua b/LuaLibs/ProcessSplit.lua
index cacc585..634418a 100644
--- a/LuaLibs/ProcessSplit.lua
+++ b/LuaLibs/ProcessSplit.lua
@@ -266,6 +266,10 @@ end
 ---------------------------------------------------------------------
 -- split per sezioni grandi con sega a catena o mix catena + lama
 function ProcessSplit.MakeBigSectionSplitting( Proc, b3Raw, dOffset, SawingData, Cutting2Data)
+   local sNotes = ''
+   if SawingData.bSplit ~= nil then
+      sNotes = 'Precut;'
+   end
    local bigSectionSplitType
    -- se pezzo non troppo alto, taglio singolo da sopra
    if b3Raw:getDimZ() + BD.CUT_EXTRA_MIN < SawingData.dChainSawMaxMat + 10 * GEO.EPS_SMALL then
@@ -284,7 +288,7 @@ function ProcessSplit.MakeBigSectionSplitting( Proc, b3Raw, dOffset, SawingData,
    -- in base alle scelte precedenti, applico le lavorazioni
    if bigSectionSplitType == "single horizontal" then
       local dCutDepth = b3Raw:getDimZ() + BD.CUT_EXTRA_MIN
-      local sNotesSplit = EgtIf( SawingData.bSplit, 'Split;', '')
+      local sNotesSplit = EgtIf( SawingData.bSplit, 'Split;', sNotes)
       -- verifico se sega a catena lunga e devo quindi estendere ingresso e uscita perchè è probabile che non riesca a ruotare sopra al pezzo
       local bExtendStartEnd
       local dMinLengthLongChainSaw = 630
@@ -295,28 +299,28 @@ function ProcessSplit.MakeBigSectionSplitting( Proc, b3Raw, dOffset, SawingData,
       if not bOk then return bOk, sErr end
    elseif bigSectionSplitType == "single vertical" then
       local dCutDepth = b3Raw:getDimY() + BD.CUT_EXTRA_MIN
-      local sNotesSplit = EgtIf( SawingData.bSplit, 'Split;', '')
+      local sNotesSplit = EgtIf( SawingData.bSplit, 'Split;', sNotes)
       local bOk, sErr = MakeCutByChainSaw( Proc.Id, SawingData.sSawing, MCH_MILL_FU.PARAL_FRONT, dCutDepth, sNotesSplit, dOffset, nil, SawingData.bInvert)
       if not bOk then return bOk, sErr end
    elseif bigSectionSplitType == "double vertical" then
       local dCutDepth = 0.5 * b3Raw:getDimY() + BD.CUT_EXTRA_MIN
-      local sNotesSplit = EgtIf( SawingData.bSplit, 'Presplit;', '')
+      local sNotesSplit = EgtIf( SawingData.bSplit, 'Presplit;', sNotes)
       local bOk, sErr = MakeCutByChainSaw( Proc.Id, SawingData.sSawing, MCH_MILL_FU.PARAL_BACK, dCutDepth, sNotesSplit, dOffset, nil, SawingData.bInvert)
       if not bOk then return bOk, sErr end
-      sNotesSplit = EgtIf( SawingData.bSplit, 'Split;', '')
+      sNotesSplit = EgtIf( SawingData.bSplit, 'Split;', sNotes)
       bOk, sErr = MakeCutByChainSaw( Proc.Id, SawingData.sSawing, MCH_MILL_FU.PARAL_FRONT, dCutDepth, sNotesSplit, dOffset, nil, SawingData.bInvert)
       if not bOk then return bOk, sErr end
    elseif bigSectionSplitType == "double horizontal" then
       -- sega a catena da sopra
       local dChainSawCutDepth = b3Raw:getDimZ() + BD.CUT_EXTRA_MIN - Cutting2Data.dMaxDepth
-      local sNotesSplit = EgtIf( SawingData.bSplit, 'Presplit;', '')
+      local sNotesSplit = EgtIf( SawingData.bSplit, 'Presplit;', sNotes)
       local bOk, sErr = MakeCutByChainSaw( Proc.Id, SawingData.sSawing, MCH_MILL_FU.PARAL_TOP, dChainSawCutDepth, sNotesSplit, dOffset, nil, SawingData.bInvert)
       if not bOk then return bOk, sErr end
       -- lama da sotto
       local dCutExtra = -dChainSawCutDepth + BD.CUT_EXTRA_MIN
       local dVzLimDwnUp
       if BD.TURN then dVzLimDwnUp = -2 end
-      local sNotes = EgtIf( SawingData.bSplit, 'Split;', '')
+      local sNotes = EgtIf( SawingData.bSplit, 'Split;', sNotes)
       local bMaximizeVerticalDepth = true
       bOk, sErr = Fbs.MakeOne( Proc.Id, 0, Cutting2Data.sCutting, Cutting2Data.dSawDiam, MCH_MILL_FU.ORTHO_TOP, dVzLimDwnUp, dCutExtra, BD.CUT_SIC, dOffset, 0, 0, sNotes, b3Raw, nil, bMaximizeVerticalDepth)
       if not bOk then return false, sErr end
@@ -359,7 +363,10 @@ end
 ---------------------------------------------------------------------
 -- tagli standard
 local function MakeStandardCuts( Proc, b3Raw, nCuts, dOffsetBetweenCuts, TailCutType, Cutting1Data, Cutting2Data, dStartOffset, dLenEndRaw)
-   local PrecutType = { bBigSectionCut = TailCutType.bBigSectionCut, bHorizCut = TailCutType.bHorizCut, bDoubleHorizCut = TailCutType.bDoubleHorizCut, bDoubleCut = TailCutType.bDoubleCut, bSplit = TailCutType.bSplit, bNeedVerticalAddedCuts = false, bNeedHorizontalAddedCuts = false}
+   if not TailCutType.sType then
+      TailCutType.sType = ''
+   end
+   local PrecutType = { bBigSectionCut = TailCutType.bBigSectionCut, bHorizCut = TailCutType.bHorizCut, bDoubleHorizCut = TailCutType.bDoubleHorizCut, bDoubleCut = TailCutType.bDoubleCut, bSplit = TailCutType.bSplit, sType = 'Precut', bNeedVerticalAddedCuts = false, bNeedHorizontalAddedCuts = false}
    if not TailCutType.bDoubleHorizCut then
       -- flag di lavorazione faccia
       local nOrthoOpposite = EgtIf( TailCutType.bHorizCut, MCH_MILL_FU.ORTHO_DOWN, MCH_MILL_FU.ORTHO_BACK)
@@ -427,8 +434,10 @@ local function MakeStandardCuts( Proc, b3Raw, nCuts, dOffsetBetweenCuts, TailCut
                if not bOk then return false, sErr end
             end
             -- taglio verticale
-            local sInfo = 'PreCut;'
-            if i == 1 then sInfo = 'Cut;' end
+            local sInfo = 'Precut'
+            if i == 1 and TailCutType.sType ~= 'Precut' then
+               sInfo = 'Cut'
+            end
             local bOk, sErr = Fbs.MakeOne( Proc.Id, 0, Cutting1Data.sCutting, Cutting1Data.dSawDiam, nOrthoOpposite, nil, dCutExtra, BD.CUT_SIC, dCutXOffset, dAccStart, dAccEnd, sInfo, b3Raw)
             if not bOk then return false, sErr end
          end
@@ -473,7 +482,7 @@ local function MakeStandardCuts( Proc, b3Raw, nCuts, dOffsetBetweenCuts, TailCut
          if TailCutType.bSplit then
             sNotes = EgtIf( i == 1, 'Split;', 'Presplit;')
          else
-            sNotes = EgtIf( i == 1, 'Cut;', 'Precut;')
+            sNotes = EgtIf( i == 1 and TailCutType.sType ~= 'Precut', 'Cut;', 'Precut;')
          end
          -- se primo taglio da sopra e PF o ONE richiedo risalita preliminare a Zmax
          if i == nCuts and TailCutType.bHorizCut and BD.C_SIMM and not BD.DOWN_HEAD then
@@ -539,7 +548,7 @@ local function MakeStandardCuts( Proc, b3Raw, nCuts, dOffsetBetweenCuts, TailCut
          if TailCutType.bSplit then
             sNotes = EgtIf( i == 1, 'Split;', 'Presplit;')
          else
-            sNotes = EgtIf( i == 1, 'Cut;', 'Precut;')
+            sNotes = EgtIf( i == 1 and TailCutType.sType ~= 'Precut', 'Cut;', 'Precut;')
          end
          local bOk, sErr = Fbs.MakeOne( Proc.Id, 0, Cutting1Data.sCutting, Cutting1Data.dSawDiam, MCH_MILL_FU.ORTHO_DOWN, dVzLimDwnUp, dCutExtra, BD.CUT_SIC, dCutOffset, dAccStart, 0, sNotes, b3Raw)
          if not bOk then return false, sErr end
@@ -637,7 +646,7 @@ function ProcessSplit.Make( Proc, nPhase, nRawId, nPartId, nOrd, sDownOrSideOrSt
          -- aggiorno ingombro del grezzo corrente con quello del successivo
          b3Raw:Add( b3NextRaw)
       else
-         dLenEndRaw = 0
+         dLenEndRaw = min( dOvmTail, abs( ptC:getX() - b3Raw:getMin():getX()))
       end
    end
    -- determino la necessità di tagli aggiuntivi
@@ -647,7 +656,7 @@ function ProcessSplit.Make( Proc, nPhase, nRawId, nPartId, nOrd, sDownOrSideOrSt
    -- dati lavorazioni sopra e sotto
    local Cutting1Data = { sCutting = sCutting, dSawDiam = dSawDiam, dMaxDepth = dSawMaxDepth, dSawThick = dSawThick, dMaxVertDepth = dMaxVertDepth}
    local Cutting2Data = { sCutting = sCutting2, dSawDiam = dSawDiam2, dMaxDepth = dSawMaxDepth2, dSawThick = dSawThick2}
-   local SawingData = { sSawing = sSawing, dChainSawMaxMat = dChainSawMaxMat, dChainSawLen = dChainSawLen, bSplit = bSplit}
+   local SawingData = { sSawing = sSawing, dChainSawMaxMat = dChainSawMaxMat, dChainSawLen = dChainSawLen, bSplit = bSplit or false}
    -- dati sul taglio di coda da effettuare
    local TailCutType = { bBigSectionCut = bBigSectionCut, bHorizCut = bHorizCut, bDoubleHorizCut = bDoubleHorizCut, bDoubleCut = bDoubleCut, bSplit = bSplit, bNeedVerticalAddedCuts = bNeedVerticalAddedCuts, bNeedHorizontalAddedCuts = bNeedHorizontalAddedCuts}
    -- se taglio per pezzi alti e larghi