Mine does. This time around it's been tweaked over the past couple of weeks. We have a gig on Saturday and today the supposedly final setlist rolled out. Each show (which at the moment is about one every other month) 5 or 6 new songs are added. We find out which ones are being replaced maybe a week before the gig. We practice every week. Personally, I think it prevents us from becoming really tight. We were getting really tight, but then all this shuffling things around started to happen. It's not going to stop either I've been told. Because I'm spending time learning new songs, I'm not practicing the old ones. I don't see how a band can be tight when things are in constant flux regarding the setlist. In my past experience (my duo), we'd shuffle the setlist and it took a while to adjust to it. We did that once. There's a groove you get into. What do you think...does a constantly shifting setlist order impact how tight a band is?