Artie
Peaveyologist
That diagram is a little hard to follow. But I see two problems right off. The middle pup is on the hot side of the circuit all the time. You're switching it off by lifting it's ground. That's not a good thing to do, and it's unnecessary.
Your "top" DPDT, ( the one that isn't A or B, appears to put N/B on at the same time, but does it in a weird way, and causes a "dead" position on the Gibson toggle. That can also cause noise and hum if you accidently hit that position.
Let me look it over some more. I'll see if I can redraw it to resolve those issues. Are "A" and "B" supposed to be the 4PDT switch?
Your "top" DPDT, ( the one that isn't A or B, appears to put N/B on at the same time, but does it in a weird way, and causes a "dead" position on the Gibson toggle. That can also cause noise and hum if you accidently hit that position.
Let me look it over some more. I'll see if I can redraw it to resolve those issues. Are "A" and "B" supposed to be the 4PDT switch?