What Burtt says in that book is probably what we're seeing in this scene but have anyone checked the actual scene he describes "right when the stormtroopers come bursting through the door" for some jumpy spot?
Continuing the discussion from the other thread, http://originaltrilogy.com/forum/topic.cfm/Complete-Comparison-of-Special-Edition-Visual-Changes/topic/11927/page/33/ it would be nice to see the complete article from the September 1993 issue of Widescreen Review, I had it in PDF format at one time but have since lost it. It doesn't seem like you can download the back issues on their site any longer either. I just copied and pasted that one from a post made in hometheaterforum at the time the dreaded GOUT was about to be released.