It's been quite a while since I've been able to work on guitars due to complications that sprang up from an auto crash 2 decades ago, but an awesome surgeon and modern medicine has gotten me back to a point where I can start restoring and making guitars. My focus for a little while will be on repairs and upgrades to family and friends' guitars, but a summer project has gotten my mind racing trying to figure out it's wiring so I can plan just what electronics to go with. I came across this beat up, roughly tele-shaped bare bones Dobro-style guitar body, no neck, that currently has 3 pot holes and the output jack hole, with little room to add more without enlarging the compartment. It's already routed for a humbucker above the cone, and has a fake soundhole (which I will port after I strip the body down to bare wood). What I'm wanting to do is strip it down, veneer it, make or adapt a neck, and install a piezo mic on the spider, and either a hb-sized gold foil or a dynasonic pickup. I'm figuring a volume/blend/tone setup for the controls. The problem is, my Achilles heel is drawing up original wiring. I can solder anything I see on paper/PC screen, but issues when mixing a magnetic and piezo pickup in the same line seems to me is a little more complicated than just soldering them together with the differences in impedance. The only wiring diagrams agrams I have come across that are even close all use 2 volume, 1 tone, and a 3-way switch. Can I ditch the switch and do what I want to do without it sounding like crap? Has anyone seen a vol/blend/tone diagram for piezo & magnetic pickups? If so, I'd appreciate being pointed in the right direction. I'm still in healing mode, but will start a thread once I get to working on this project. Thanks!