Ok Here we go, Amps used: Tweed princton Blackface 66' deluxe reverb Dr Z route 66 Dr Z Z-28 Pedals: Blackstone appliances mosfet overdrive Fulldrive 2 mosfet Big LLoyde Overdose Addrock ol' yeller Vintage rat reissue 94' Guitars: Prs pre lawsuit single cut Prs dgt 79' schecter strat duncan custom maple neck alder body Kit tele with ash, rosewood neck 1/4 lb duncan pickup in bridge I just got the fulldrive and i do like the tone and mike's fat mid switch. I've had the addrock for years and like the clear slightly compressed grind. Better with humbuckers The blackstone came in third. Rightous fat grind and fat low mids. The only thing we agreed was not a good thing about the blackstone is the eq' section is only accessed through the back and 4 screws removed other then that it's a tied 2nd with the fulldrive mosfet The winner is the discrete wired JFET Big LLoyds Overdose. Because out of all of them, it had the most db boost. Fattest low end of all ! period ! All the others had a limited "in the box eq" sound. Not to say that's bad. No 4x12's were used. The fulldrive 2 mosfet came in second. Vintage and fm mode and almost as fat as the overdose. But still too compressed. But I like it more than my buddie Tim. The rat is 5th It was ok just too flat eq 308 chip was good and we agreed that 4x12 is what it needed to fatten it up Very subjective to dis this classic so many records were made with ! The addrock is 4th is a jfet grind chip with a tl072cn chip. Better than the rat because the guy who eq' it made a nice clear gain reminds me of Dean Deleo's tone with his clear grindy full chords. Very intersting pedal because it's very smooth symectrical grind, just not the output of the overdose. I hear the new ones address that. I think it's not fair to the fulltone because we were not running it at 18 volts just 9 volts like the overdose so all voltages relative at 9volts i hoping. Take note: This is my own personal opinions along with my guitar geek friend Tim. All gain pedals were dimed on volume and then adding gain to obtain biggest output. But that i think will not be reflected to the live stage sounds. So let's get a disscussion started about these gain pedals ? What i have learned is that chips although are nice, their short commings can be exployed by a descrete wired pedal like the big lloyed overdose as far as Full bandwith grind. Doing full chords and classic rock riff through the route 66 nailed our choice. This post is not out to dis other pedals. Sorry we didn't have a tim, timmy or Klon. What i would like to start is a open forum of what you like ? descrete wired Jfets, Mosfets or chips ?