you won't "need" all of that. what you will need(at least for an lr baggs rig) is a 250k pot or the supplied pot...can't remember the value. this would replace your tone knob and a stereo jack, which would be supplied if you got the x-bridge. that is the only piezo i am familiar with, btw. for your situation, i would get 2 push/pull pots. one 500k and one 250k. the 500k would be your master magnetic volume and the 250k would be your piezo volume. the 500k switch would be the "either" selector, switching between magnetic and piezo sources. the 250k switch would be a defeat for that switch for both on. if you need a preamp for volume, get one of those preamps from GFS. the ones that will stick to a pot, granted in this case you would have to isolate it from the shielding, but stick it on the
cavity cover with some double stick tape. you would lose tone controls, but you can get an external preamp like the baggs para d.i. or gigpro to remedy. this would save you from drilling for new pots.
rich
