I'm trying to decide between a Mark III and Mark IV. I know both will sound best when opened up, but as a non-gigging musician, most of my playing is done at home. I don't want to use an attenuator, and I was wondering whether the Mark III in Class A mode or the Mark IV with 6V6's in Tweed mode would get into the sweeter distorted tone ranges at moderate volumes. What about Simul-Class/Full Power modes with 6L6/EL34's? I'm not talking bedroom levels, but more of a basement "home-alone without bothering the neighbors" level. Loud enough to feel the satisfying punch, but less than what would keep up with drums or require hearing protection. Can either or both of these models deliver enough of their tone potential at those levels to be worthwhile?