Hi there, was just wondering if I had missed something. I create bones for a Poser figure in Carrara(Poser figure as .obj format) When I attach the skeleton,the poser figure's chest changes shape a little and looks a bit square. I have made sure that the bones are 'inside' of the figure. I have even moved the bones back, but it still looks square. Anyone have any tips on this?

(ps, the 2 images are resized, that's why they look a little long & distorted!)