The 'ballooning' of edges occurs because of Poser 5's auto smoothing of edges. Poser 4 does not seem to have the problem to the same extent. Some people, when making Poser items, put a very small chamfer on the model where sharp adges are needed. Iv'e never had much success chamfering edges to get rid of ballooning. My prefered method in Cinema4D is to select the polygons from one of the edges and use Cinema's disconect function. Remember to make sure 'weld identical edges' isn't selected in Poser when importing.