I don't think a lot of the mods were done to change the tone per say, they helped cut out noise, tighten up the amps response etc.... All in all it's upgrades worth making to have a better and tighter amp for any style. You plug a tele, a strat, les Paul you get a completely different guitar tone. You plug in a Jerry guitar, well there's Jerry with his impeccable tight focused tone. Hell it makes a great bass preamp too. JG mods are not gonna hinder getting your own brand of tone or make you sound like Jerry if you are trying not to. You'll just have an awesome, quiet, reliable, durable, tight and responsive twin preamp to start shaping your tone. The pickups, guitar, speakers, power amp, and pedals will respond awesome through the SMS JG circuit. Good luck CS!!