I went back and dubbed with it and went back and forth from 62 to 70 or so then settled on 64 a side. Not sure why people are disparaging the 12AT7's. Maybe current production sounds bad? I love that I can turn the gains all the way up without it getting too distorted. I put a SD-1 into it and now both channels respond to overdrive as opposed to just the green channel. Sounds great to me and I have owned over 100 amps in my life including a 2203 set up and currently have a couple Mesa Mark amps and a Tremoverb stack. I'd say I have some good amps to compare to. It's still LAF and that Marshall bark is there in spades. No c19 mod or anything needed. I will say that the power tubes will need to be replaced soon. They drifted quite a bit between adjustments and finally settled down after about 20 minutes or so. I do wonder if the OT is supposed to get warm to the touch because it certainly was. Never noticed that before on any amps I opened up and modded or tested.