Yea, I saw a suggestion that if you usually setup tightly, that even on large stages, you should continue to setup tightly. That way, the sounds that you are used to hearing are still the sounds you are hearing. I have run into bands that didn't make the transition to outdoor stages where so much sound leaves the stage. If you don't make up that loss in volume to compensate, some musicians get lost. (Really, shouldn't you be rehearsing at much lower volumes anyway?)