I model in mostly quads using Wings3D which is a box modeler, though you can do some subdivision modeling as well. A couple of times I've imported my .obj models into 3DXchange Pro and my models look like they've been tattered by a tropical blow. Would it help to convert my quads into tri's? I know, I should run the experiment myself and see if I find something useful to share with other users. I will check back with my findings.