as for the JP gain levels, yeah, ive seen the video and its confusing, because when he does the Mark V demo video, he uses the Mark IV mode with the gain cranked WAY up - more than id consider using. When he demos channel 2, he plays a crunchy bit but not his classic riffs. Once he goes to channel 3, then he plays a whole bunch of various riffs. In the new video its quite different. But then he goes to shred mode to demo some of the heavier riffs.
I always wanted a mark iv back in the day and have played the mark v a bunch. They had a good amount more gain on tap than the quad preamp i had.
But you're right. The last album Jp said he exclusively used the JP2C to record, and you can hear theres definitely less gain.
I need to spend more time with the other profiles in this pack. Again, sorry if my initial review came off overly critical. Really i just want more of this amp.
As ive said, i have a lot of mesa mark stuff, and most of it id consider throw away, but i do recommend this pack.