For what its worth...here's a link to a Jeff Fredette helmet cam video from the 2006 ISDE doing a rear tire change with Tire Balls. The video is actually of his complete work period at the end of Day-two.
http://www.youtube.com/watch?v=UVl6grp3Sww
I know some of you have seen it but I thought Jeff's technique with working with Tire Balls was worth looking at again for this thread.