Thanks for the tip about the UV mapping. I know some really old Poser stuff pulled some tricks with this, before P5 brought in the ability to tile a texture. I can't think of any reason to do it with a figure's head. Might be some silly boundary error, using less-than where less-than-or-equal-to was required. Since the end result is a morph, the change in UV data is irrelevant, but it might be awkward for any texture processing.