Firstly I dont have an amp to try this on.
Found this during Cold checks on the wiring.
What I found was battling vol controls when the 3 way switch was in the mid(both PUPs)position.
Basically the vol control with the least resistance to earth was the master. In the worst case putting a vol control to 0 kills the output, effectively short grounding the o/p.
I have attached my simplified view of the wiring without the tone circuitry.
I am assuming that the wiper of the vol control is the middle tab(as per my pots).
Questions
Is the PB schematic correct or should the PUP hot wire be swapped (with the o/p wire) to go to Wiper (shorting and grounding the PUP at 0 vol)?
Or have I just got it all wrong?
Attached in the PB wiring, my assessment an genuine Rick wiring.