Hi, I recently got a new Reverend Kingsnake Head. It sounded great for the first few hours, but now it's starting to sound kinda....flabby? It's farting out on the attack.....sounds really compressed. I dont think it was doing this before....it doesnt sound as smooth.....I was wondering if, after a few hours, that the bias is drifting? Could it be that the tubes are settling in and the bias needs to be tweaked? Any other ideas?? I'm running a Jenkins 212 cab e/ Eminence Tonespotters.