I agree with some of the comments: it has treble bleeding resistor in parallel with capacitor in both volume pots, and the push-pull on the bridge tone is for single coil on that pickup. Regarding the wiring, I don't see anything that shocks me. I would say it is pretty normal for what it does, not being a printed circuit board (PCB), which is rare.
I happen to have a 2019 SG HP which has a PCB. If it had not a PCB I would already had made some changes...
I happen to have a 2019 SG HP which has a PCB. If it had not a PCB I would already had made some changes...
