twooffour said:

that one line about Jabba's intolerance for lousy smugglers is really the only "sore thumb" in the whole business.

What about Han telling Luke and co. that he needs to get going because he's rushed? Originally, it was true. Jabba was sure to be pissed when he found out that Han just blasted his messenger and then took off to god knows where. In the Special Edition version, not only is Jabba not very upset at the loss of Greedo, but also gives Han more time! He isn't "rushed" in the least! Also, IMO, it stops the flow of the film dead in it's tracks for nothing more than a lackluster CGI mess that makes the previous scene with Greedo unnecessary. ALSO it ruins the big reveal of who and what Jabba is in Jedi.