It's worth remembering that Poser 5+ can stick a texture into a small part of UV space--scale and offset settings on the image_map node. You want different lipstick colours? Use the material groups and the scaling, and you don't need ten different full-head texturemaps. (Bad example, you might want other, matching, makeup changes on the face.) Trouble is, there's stuff like this which isn't compatible with DAZ|Studio.