Wow. Just wow…. Built a couple of these last night and got to testing them around 9:00pm so unfortunately couldn’t play too loud but wow…. Used 2n3904 hfe around 280-320. Definitely my favorite EQD circuit, definitely in my top three favorite fuzz circuits. Hard to pick a favorite fuzz because they all sound a bit different and have different applications, but for your super thick, super saturated fuzz/distortion this one takes the cake for me. Makes me want to build the Elk Sustainer it’s based off of.