That might be the effect of an obscure Poser bug. We've been through this some time ago. Load a figure in zero pose and load the corresponding obj file. Then look very closely. The figure is deformed with respect to the obj file, and the deformation is asymmetric. It is stronger for some figures than for others, but I haven't been able to figure out why. When you pose the figure, even symmetrically, the deformation gets stronger. Apparently, this has been brought up with Smith Micro (pjz99 was very eager to make them fix it), but I don't know the status.

I think DAZ Studio doesn't have this bug. If the same problem shows up there, it could be something in Antonia.

-- I'm not mad at you, just Westphalian.