I've search and haven't found too much information on this subject. I'm building a bass with warmoth parts that will have Sadowsky P/J pickups. I'm looking for options of how to wire these things together for the best passive tone. I'll eventually buy an outbourd pre-amp instead of buying something to go on-board. How would you wire this bass? I'm leaning toward 2 volumes and 2 tones. If I were to do this, could I do stacked knobs so it would still fit on a standard P pickguard? Any help or information you can provide would be much appreciated. I am definitely an electronics amateur, but I do have some soldering experience (I won't torch the bass). I've removed and installed pre-amps, but never selected pots and worked from a design. thanks!