I think we should just agree that, as is the case with so much of E4, Lucas was making things up as he went along. Sure he had an "original vision" but sometimes what you originally envision just doesn't translate well to shooting a low budget sci-fi movie under immense studio pressure. Lucas' "original vision" was the Obi-Wan was more of a crazy old coot, but I doubt any of us will criticize the way Alec Guiness played him. When Harrison Ford spoke the lines "Jabba, you're a wonderful human being" everyone on set was thinking Jabba was human. However that scene was cut and, despite what some in here claim, deleted scenes are not canon so Lucas was free to start from scratch when filming E6. Then, almost 20 years later when making the SE, Lucas decided to put the scene back in. The line "you're a wonderful human being" still worked because of the arrogant, cocksure manner in which Ford delivered it. Furthermore I absolutely LOVE the way Solo shows absolutely no facial expression whatsoever when he steps on Jabba's tail. I would call it brilliant acting but I know that what really happened is that when Harrison Ford filmed the scene, he was walking around behind another actor and there was no tail to step on and the whole thing was a digital manipulation. I have to say the scene 100% works for me, and especially with the "newer" CGI version of Jabba.