Okay, yeah, I see where you're coming from. Believe me, I'm not going to complain about something without a good reason, and I will give credit where credit is due. I prefer the puppet Yoda, but I'm not going to say it's perfect. In that scene where Luke and Yoda are training, and Yoda gives that whole speech about the dark side, I'm just staring at him, yelling in my head, "Blink, damnit, blink!" But you can't say that puppetry isn't advanced enough to deal with eyes. All the things you mentioned with the eyes were able to be done with the Jabba the Hutt puppet.