Sense check on wiring scheme

[jmax]

I'm building an Es-12q hollowbody 12 string and I've designed a flexible wiring scheme that I'd like a sense check from the group on.

I'm aiming for:

Three position selector
Coil splitting on the bridge and neck pickups with push/pulls
A passive piezo bridge with an on/off using a push pull
A master tone

I've attached a schematic of the way I think it should be wired.

Thanks,

-John