My graduate professor (not teacher) wrote the book on NURBS (Non-Uniform Rational B-Splines, which I'm sure more than a couple of people at ILM have copies of in their desks at this moment ;-) He also was friends of Bezier, the inventor of Bezier curves and other industry luminaries. I doubt very much anything you or I post will enlighten him further , we're not that smart. ;-) I know that you're saying the puppet is a real physical entity, what I'm saying is that just because something is computer generated it doesn't mean that a physical representation of it would look more "realistic". Take inanimate objects as a simple example, there are many instances of renderings of inanimate objets that model real life, that almost nobody could tell apart from the real thing. Now living organic like models are still difficult, but what you are implying is that a puppet will always beat a CG representation of an organic model and I think that's an oversimplification. Hey, you could be right, the Yoda CG could be crap for most people and I'm the exception, however making a blanket statement that a puppet will always look better than a computer generated object is just not right at all. Not only by the looks, but also by movement, and other qualities.