#3
If that were me up there, I'd yell at the guy running sound.
The simpleton's rig:
Fender Roadhouse Stratocaster
Homemade Fuzz pedal "the chainsaw"
Peavey Valveking 212.
#5
You know if you put the volume knob to 4 or 5 on the guitar, thne you don't have to mess with the amp. You can just turn up the volume right there.

Otherwise, good job.