Hey guys, I just got my amp back from a tech that works at a local guitar store. I got it retubed, recapped and rebiased and now it sounds great...but it only sounds great when I don't use the Brite channel and when the mid switch is pushed all the way to the right (the least amount of treble). Basically if i switch the mid switch to another setting, the amp starts to sound distorted and dirty, and the same thing happens when I use the brite channel or using both channels with the brite knob turned up...is this inherent to the amp, and will doing eliminating the mid boost and fixing the master volume control as it says in the mods fix this problem and make my amp have a better variety of clean tones?