I'm builing a body, and am getting ready to route for pick ups. The thing is, I haven't decided what config I want. I already have a Jazz, a P and a MM and a soon to be modified P/J. Here are the specs of the bass BODY:Ash core, bookmatched figured Walnut top NECK: All Maple from Warmoth 4 string 35" scale (if I can get one, otherwise it'll have to be 34") passive electronics. I'm leaning toward the P/ MM config, wired Neck Volume/ Bridge Volume/ Master Tone.