Hi,
I have a limited number of compressor channels (4 RNC's) for the following
live light rock/folky band set up : -

1 - Drums kick
2 - Drums snare
3 - Drums O/H
4 - Bass
5 - Elec guitar 1 - mainly rhythm
6 - Elec guitar 2 - mainly lead
7 - Vocal lead
8 - Vocal backing

I'm worried about grouping channels and putting them through the
compressors. My thoughts are currently :-

Group drums, put through RNC 1
Group vocals and put through RNC 2 (super-nice mode)
Bass through RNC 3
Elec guitars through RNC 4

Normally I have as many channels of compression as I need in a DAW
environment and occasionally running out to the few outboards I have, but
I'm starting to get into live sound too, so being limited is a bit new to me
(its terrible, I've been spoilt!), so any advice would be much appreciated.

My concerns a
Snare and kick will cause weird affects with the cymbals in the O/H's.
Perhaps the O/H's do not need compression. Same problem with vocals, if one
singer suddenly hits a loud spot, the backing singers volume will be
reduced, and vise-versa, same problem with guitars.

I could get some more compressors, but I'm not convinced I need them yet,
and I am starting to run low on my current budget, and this gig is before my
next pay day !

I know this is all a bit vague, but I'd be interested in any advice or
experiences people may have. I know when I record and mix this band I use a
fair amount of compression, it is especially needed on the bass in this
particular case.......

PS, I am also sticking an Aphex Dominator II on the mains to catch
transients mainly from the drums and bass.

Cheers,

Mark.