heya; not sure why a model would not work in p3, unless it has pentagons in it. i know for a fact that p4 can handle some pentagons, but they will crash p3 very badly. (well, i'm 95% sure, anyhow.) if the eyes have a cornea over the pupil, then you'd never be able to see the interior of the eyes in p3. that's all i can think of.