diff --git a/cumulus/src/tools/px2mpx.py b/cumulus/src/tools/px2mpx.py
index ed90f33b..47ac4dd2 100755
--- a/cumulus/src/tools/px2mpx.py
+++ b/cumulus/src/tools/px2mpx.py
@@ -121,6 +121,8 @@ def px2mpx ( editor, pxCell ):
     raise ErrorMessage( 3, 'px2mpx.px2mpx(): Mandatory pxCell argument is None.' )
   mpxCell = None
 
+  print '\nProcessing', pxCell
+
   UpdateSession.open()
   try:
     if pxCell.getName() != 'padreal':
@@ -178,8 +180,9 @@ def px2mpx ( editor, pxCell ):
                                        )
         elif isinstance(component,Horizontal):
           dL, dW, mW = getDeltas( layer )
-          dLLeft  = dL
-          dLRight = dL
+          dLLeft        = dL
+          dLRight       = dL
+          skipComponent = False
 
           bb = component.getBoundingBox()
           if component.getSourceX() > component.getTargetX(): component.invert()
@@ -198,12 +201,16 @@ def px2mpx ( editor, pxCell ):
                   print '      Shrink right.'
                   dLRight = dL - DbU.fromLambda( 1.5 )
 
+                if layer.getName()[-1] == '4' and state == AllSpan:
+                  print '      Skipping component.'
+                  skipComponent = True
+
           width = mW
           if component.getWidth() > mW:
             width = component.getWidth()*2 + dW
 
          #print DbU.toLambda(bb.getWidth()), DbU.toLambda( dLLeft-dLRight)
-          if bb.getWidth()*2 > abs(dLLeft+dLRight):
+          if bb.getWidth()*2 > abs(dLLeft+dLRight) and not skipComponent:
             dupComponent = Horizontal.create( mpxNet
                                             , layer
                                             , component.getY       ()*2
@@ -212,11 +219,14 @@ def px2mpx ( editor, pxCell ):
                                             , component.getDxTarget()*2 + dLRight
                                             )
           else:
-            print '    Horizontal component too small, not converted'
+            print '    Horizontal component too small *or* skipped, not converted'
 
         elif isinstance(component,Vertical):
           dL, dW, mW = getDeltas( component.getLayer() )
-          dX = 0
+          dLTop         = dL
+          dLBottom      = dL
+          dX            = 0
+          skipComponent = False
 
           if component.getSourceY() > component.getTargetY(): component.invert()
           if isinstance(layer,RegularLayer):
@@ -237,7 +247,14 @@ def px2mpx ( editor, pxCell ):
                   dX  = 0
                   dW += DbU.fromLambda( -4.0 )
 
-          if dW < component.getWidth():
+                if layer.getName()[-1] == '5':
+                  if state == AllSpan:
+                    print '      Skipping component.'
+                    skipComponent = True
+                  else:
+                    dLTop = DbU.fromLambda(120.0) - component.getDyTarget()*2
+
+          if dW < component.getWidth() and not skipComponent:
             width = mW
             if component.getWidth() > mW:
               width = component.getWidth()*2 + dW
@@ -246,11 +263,11 @@ def px2mpx ( editor, pxCell ):
                                           , layer
                                           , component.getX       ()*2 + dX
                                           , width
-                                          , component.getDySource()*2 - dL
-                                          , component.getDyTarget()*2 + dL
+                                          , component.getDySource()*2 - dLBottom
+                                          , component.getDyTarget()*2 + dLTop
                                           )
           else:
-            print '    Vertical component too small, not converted'
+            print '    Vertical component too small *or* skipped, not converted'
 
         else:
           print '[WARNING] Unchanged component:', component
diff --git a/katabatic/src/AutoContactTurn.cpp b/katabatic/src/AutoContactTurn.cpp
index 35f1fbb8..369beacb 100644
--- a/katabatic/src/AutoContactTurn.cpp
+++ b/katabatic/src/AutoContactTurn.cpp
@@ -136,7 +136,8 @@ namespace Katabatic {
       }
       _vertical1 = static_cast<AutoVertical*>(segment);
     }
-    unsetFlags( CntInvalidatedCache  );
+
+    if (_horizontal1 and _vertical1) unsetFlags( CntInvalidatedCache  );
   }
 
 
diff --git a/katabatic/src/AutoSegment.cpp b/katabatic/src/AutoSegment.cpp
index fa85c54a..fd0f0d7c 100644
--- a/katabatic/src/AutoSegment.cpp
+++ b/katabatic/src/AutoSegment.cpp
@@ -534,16 +534,9 @@ namespace Katabatic {
 
   DbU::Unit  AutoSegment::getPPitch () const
   {
-    DbU::Unit    topPPitch     = getPitch();
-    DbU::Unit    bottomPPitch  = topPPitch;
-    unsigned int depth         = getDepth();
-
-    if (depth < Session::getDepth()) {
-      topPPitch = Session::getPitch( depth + ((_flags & SegSpinTop) ? 1 : 0) );
-    }
-    if (depth > 0) {
-      bottomPPitch = Session::getPitch( depth - ((_flags & SegSpinBottom) ? 1 : 0) );
-    }
+    unsigned int depth        = getDepth();
+    DbU::Unit    topPPitch    = Session::getPitch( depth + ( ((_flags & SegSpinTop) and (depth+1 < Session::getDepth())) ? 1 : 0) );
+    DbU::Unit    bottomPPitch = Session::getPitch( depth - ( ((_flags & SegSpinBottom) and (depth > 0))? 1 : 0) );
 
     return std::max( topPPitch, bottomPPitch );
   }
diff --git a/kite/src/SegmentFsm.cpp b/kite/src/SegmentFsm.cpp
index df061ac8..2573da50 100644
--- a/kite/src/SegmentFsm.cpp
+++ b/kite/src/SegmentFsm.cpp
@@ -787,10 +787,10 @@ namespace Kite {
           }
           otherNet      = other->getNet();
           otherOverlap  = other->getCanonicalInterval();
-          otherIsGlobal = other->isGlobal() or other->isBlockage();
+          otherIsGlobal = other->isGlobal() or other->isBlockage() or other->isFixed();
         } else {
           otherOverlap.merge(other->getCanonicalInterval());
-          otherIsGlobal = otherIsGlobal or other->isGlobal() or other->isBlockage();
+          otherIsGlobal = otherIsGlobal or other->isGlobal() or other->isBlockage() or other->isFixed();
         }
       }
       if (not otherOverlap.isEmpty()) {