I'm considering a self build, and whilst my general woodworking skills are pretty good, i know little about electrics. The concept is a singlecut fretless 6, and i want plenty of mwah and acoustic tones, but a bit of flexibility is always nice. I'd like an under-saddle piezo, but also a single humbucker, switiching between either or both, with the possibility of blending. I know i'll need some kind of buffer for the piezo. How would it work if both were wired to a preamp? Any suggestions or wiring diagrams? Thanks in advance!