it is something I've wondered as well. Karl is always quite clear about them not using setlists, but he also says they don't rehearse, which I think we know they do.
Could be the setlists are simply transcribed during the show, as some kind of record, but that doesn't really make sense to me.
Maybe Karl can chime in on this sometime on uwlive....
so:
official question to Karl:
Do you use setlists or don't you?
many thanks