I've dug myself into a big old hole and filled it with tiny wires, and soldered them together, all for naught. I've a MIJ Squire Tele that had been previously modified with a Lace Sensor Blue in the bridge position, and during a frenzy of shield paint (even into the the tunnels between control cavities) and shielded wire, I installed a humbucker up on the neck because a professional installation had wired a standard pickup out of phase and I wanted to try something different anyway. So, in the process, with my tendency to way over research every tech project I lay my hands on, I decided that I would also have to install another volume pot to dedicate a 250K pot to the single and one 500K for the humbucker, of course that was necessary, I read it on the internet. Anyway, I tried soldering it up with a fairly standard four way switch, only going through the pots from the P/Us to the switch, and that worked, but didn't give me the four tones I was shooting for , more like two tones doubled, but I should have never touched it at that point knowing what I know now... Yesterday, I had found a diagram with HH to two Vol, perfect right? Doesn't work, tried it twice. Now, having played with the jumpers and trying to figure out how to make the three out of four positions make noise, I need help, y'all are my only hope.