I think I'm gonna try out using tris on my next garment and see how it goes. On a few personal items I usually hit them up with a few sub-d's to make them high poly, and then ran cloth sim. Maybe using tris will be able to do the same smooth draping results without making it so high in poly count. That alone would be a sweet bonus.

                                                                                                                    

Poser 10

Octane Render

Wings 3D