You know, if you have IEM's and if you can have your own little mixing board in front of you, that's absolutely the way to go. I played this festival at Harrahs and that's what we had. I could dial in the mix any way I wanted and man it was the best monitor experience I've ever had. Although, I found that IEM's didn't work all too well in a pit orchestra. I often kept my earbuds out because it didn't catch the acoustics the way it was supposed to...but then again I didn't have as much control over my monitor mix as I did at Harrahs. I find it's a lot easier getting a monitor mix while the band is playing too. I don't think the theater I worked for really understood that.