One shouldn't use the same type of injection poses within the same Poser session anyway, as this will probably inject the wrong deltas. Easy to verify: - start Poser - load V3 - inject all V3 head morphs - new scene - load M3 - inject all M3 head morphs - save to M3V3.pz3 - exit poser - start Poser - load M3 - inject all M3 head morphs - save to M3M3.pz3 - compare the file sizes -> different sizes -> different morphs injected. Oh, and this all has nothing to do with MAT(erial) poses ;-)