Ghost, ZBrush will generally crash if you try to create a displacement map for a model with overlapping uv's. I export from P5, delete all the polys belonging to the material groups that you don't want (ie. just leave all the SkinTorso, SkinLeg, etc) polys. Then import into ZBrush. You can use Wings to delete the SkinHead, eye, etc polys - although it is a little slow.

Creator of PoserPhysics
Creator of OctaneRender for Poser
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