Dear Mr Soundguy if you want to make all the musicians on stage happy and feel at ease try this...while the musicians are messing with there final personal stage sound show some interest.Walk up on stage while they are finalizing their sound and give an honest listen up close.Say something like this hey pal thats real nice tones you got going on there im gonna do my very best to reproduce your exact sound for you OK....Most players will really respect that approach.