I've been trying Gmax and Noeisis, but fot some reason I can't get grip on it. Although it is a bit queer to explain in my ducktalk, but
here is what happens.
After I have exported a model in quake, let's say player.mdl - pose axpain1.
This dxf is the first picture, it shows a part of the knee with open squares.
I import the model into my model studio and it appears as the same dxf as qmle.
When I export it back again as dxf or any other extentions, it is filled with intersections.
I won't care that much, but for making a good pose for a quake model it becomes incompatible with the original file.
I once modelled an enforcer in Gmax, that kept the original tris/vert count, but Iremember I had a hard time with it.