i don't think it really matters. i feel that the OT yoda should stay as it is, with ady's improvements of course, and leave the PT yoda as it is.
thing i like about the PT yoda is that we see his facial expressions and not the same grin everytime. no offense. but when yoda's in that much fighting and tough situations, i would like to see a frown, ears drooping, sad face once in awhile.