I didn't know anyone had altered the head in any P4 Fem. Why not try the P4NF head as a morph for P4WWG? I think the head is the same for all of them. P3:P4:Eve:Casual all have the same head, if I remember it correctly. If it is remapping - layering the head over the body - you want to use UVM - as Phil says - and only move and resize - not map - You can't unfold - so you can't get at the facets any better than what is there. There are tricks with a modeler, but short of high end programs for mapping, you cannot do a really satisfactory job of unfolding. As far as getting the head to be a different material form the body, if you do not wish to use UVMapper, well, the head group is discretely defined in the "f" section of the OBJ file. Just add "usemtl SkinHead" on the line just below "g head" and add "usemtl SkinBody" at the start of the next body group. If SkinBody is not the material name all the way through, make it the actual body material, or edit all the other entires for the body to SkinBody. As for the CR2, if you want only the valid materials in there, delete all of the material blocks and when in opens the cr2, Poser will write blocks for just the ones in the OBJ file. It is easy to add non functioning material blocks to a cr2 - a MATpose will do it. You must remove obsolete materials from a cr2, Poser will not do it for you.