I guess many or even most band manager types do this. But if you aren't, you really should think about it. I've noticed a lot of times, I'll hear something that isn't right during a song but don't want to break up the overall groove just to go over it at that second. Problem is that by the time the song is done, sometimes it's not always easy to remember what you heard wrong or where it was etc. Plus if you have a lot of material to cover and someone needs to make minor corrections on their own time, you don't want to spend valuable band practice time going over the same bridge for 15 minutes. Anyway, for our show - stage presence and some choreographed movements are vital to the integrity of our show and it's been amazing how much of a tool video has been for getting these elements right, and picking out bad tone in the mix, or other arrangement problems that aren't always totally evident when you are also focusing on your parts during a song. Just wondered who else uses recording gear (audio and/or video) for every practice to review and critique like I do - or if I'm just a big obssessive perfectionist dork. Not necessarily mutually exclusive truths, mind you.