Yeah, vol. is definitely relative. MDT doesn't play "loud" in an absolute sense, but we're usually louder than any other band we share a bill with. Plus my guitarist in MDT doesn't play all that loudly, either. Hence 4 on the Beta being more than enough. HC is louder than MDT, but still not master vol. near dimed loud. Most of the venues in my area (and the crowds) just can't take that.
I dime the master on the 2PRO but I'm using the Preamp gain as a volume control. We're lucky in Madison, we can be STUPID loud and venues don't care. I've had more audience members yell at me to turn up than people saying we're too loud.
We've been attempting to control volume at practice, with varying degrees of success. One week the guitarists couldn't hear the drums and we all realized that it had gotten a little out of hand, haha.
I also run the verellen with Master dimed and use the pre as a volume control. Gets a much better tone that way to my ears. We run at about half volume most the time. Some venues we get away with more but it seems like people around here aren't used to super loud music. Hopefully we can do some out of state shows and get to crank it.