Please don't take my semi-informed word for it! But I got that message for both Michael and Vicky's head when I tried to use MT Mirror. However, I've never successfully used that utility. If you have, you may have better luck than I did. I asked around a bit and know folks have used it for breast morphs and such, but didn't heard back specifically about these heads. Do let me know if it works for you. I hope to get back to Michael's eyes once I get a few projects taken care of, but probably not until June. If I get a reasonably symmetrical morph, would you like to see it? (Assuming I can get it in a form that's legal to share.)