Man, I'm having a hard time dialing this thing in. One minute I think it is the best amp made, the next I can't dial in what I want. Like many Marshalls, it likes medium to high output humbukers much better than single coils. My question is: Has anyone gone on the back and adjusted the bias up a bit. I did but it didn't make that much of a difference. I have mine on about 45 or so. What does everyone have their on? How do you all dial your amp in. If you are in AFD mode and cut the gain up past about 3 oclock it gets blaket over the cab sound. I'm intrigued by the amp though. It does have the potential to really rock, but you have to find the sweet spot on the gain, prescence, middle and power nobs.