Glad Jeff posted this, good advice here Hunter.

From my own experience working with young people from 12 and up, the drummer is always the wild card. I remember a set up with my son's bands and I could not keep the drummer consistent. So I got smart and asked him to play as hard as he could and set the rest of the stage off that. Not to be critical, but 12 and 13 year old drummers are still working on motor skills and can be up and down. And it is not only 12 year olds...

Anyway, good luck.