It's a genuine Cor-Tek switch that I bought from Rich. I'll poke around a bit. The Alpha 5-way is identical btw...same terminal mapping and everything. I had one in my S5470 and it worked just fine until I decided to throw a hum-cancelling single coil in the middle position.
I can go through all the positions and I get sound. In #4, coil split
mode (if you look at diagram, fourth from left in pickup diagram at bottom of wiring diagram), there's nothing. No sound, no buzz, nothing. As if the guitar isn't plugged in. I rewired it twice and then checked everything again. Honestly, I probably wouldn't even use that position but it'd be nice to have just in case it does sound good with the Breed
I'll poke around and see if anything changes. I just use my iPhone and one of the adapters for tuning/testing. Not a whole lot of amperage running around in that loop.