I will PM Jim about this, but I figured I'd post and get a general consensus of opinions, if possible. I'm strongly considering a 2x12 cab with the Scumback H75/M75 combo. I will be using either the Egnater Tweaker (15 watt) head or it's upcoming big brother release, the Tweaker 40. Jim said the 40, when powered by 6L6's, will not blow the 25/30-watt speakers, but I worry about the amount of headroom with the low power speakers. My OD will come from pedals for the most part, so I need decent clean volume without breakup. For those of you who have experience with these speakers (ONLY the H75 and M75 considered), will the 65-watt versions avail more clean headroom than the 25/30-watters? Do the 65-watt and 100-watt versions retain the tonal integrity of the lesser powered ones? Or do all versions of these speakers just break up way early and I should consider a different model/brand? Thanks in advance.