yeah you're right about the low gain, i have to put it in minus figures so it doesn't make static noise :P however i found if i want to bring the low gain up, i can as long as i sky rocket the mid gain simultaneously and drop the high gain to cut some static out :P just hope I remember on the night now :')
Sure its not a problem at all, I truly appreciate it.I hope it goes well for you :) Just watch your low gains they might be a bit much on the sound system.