I'm about to play my first couple of shows HD 500 and I want to use it as an amp (so just pod-> xlr out -> PA), but I have a problem keeping the volume levels even through patches. I'm using a few patches for clean sounds and a bunch of others for distorted and lead sounds. But when I'm on let's say clean A and I switch to distorted B the volume level drops (just because of the settings I dialed in, not because of any technical error or similar). I find it quite hard to dial all the settings to right about the same volume, so is there somekind of failsafe way to do this? Otherwise I'll just screw up all of our gigs :D.