Hmm this thread has tweaked my curiosity - In the screen shots i have taken are from Silo - The sample that michael shows is in the first grab and is indeed a fine mesh, but then if i scroll over to the next body section you can see clearly what i was trying to say, see how the vertices are all disturbed leading to faces pointing in the wrong direction. Silo is just a modeller, with SubD support and UV tools, does this mean that Silo has the same problem as Blender ?

Which problem are you referring to Sosodef ?

Martin Spencer-Ford