ok, I'm new to performing my own surgery on basses. Here's what I'd like to do, hopefully you fine folks reading this will have some ideas for how to do it. Just got a fairly new Fender Jaguar bass. a) i love it, smaller than my Cirrus basses but with just as much bottom b) desperately needs hipshot bass xtender (I'm a 5 string player... need the low D) c) the series/parallel wiring switch isn't needed. I'll most likely never play this in the parallel setting - I just don't like the subtle difference it makes in the low frequencies. So what I'm thinking is to disconnect the series/parallel switch and replace it with an onboard overdrive. While no I haven't picked out with circuit board to use for the overdrive (I'm leaning toward the OD from the pigtronix disnortion, but don't want to gut mine) I need to make sure that making this change won't mess with the rest of the workings of the bass. It has an active/passive switch (with hi/low adjustment knobs) and the standard P-bass volume/tone knobs. IF I were to successfully add the overdrive, could it be made so that the tone knob would effect the amount of OD? Anybody follow what I'm trying to get across here? If so, suggestions would be awesome.