In most situation like festivals I would agree with Jed. However at a lot of bluegrass festivals you'll note that a lot of performers are going to fewer and fewr mics on stage. Sometimes you'll see just one { Del McCoury is an example }. Our group has had the luxury of having pleanty of time for sound checks and we just plain play better the fewer mics we content with. We only used two the oter night to mic 5 musicians and the results were pretty darn good. It was great to actually hear the guy standing next to me.