Okay, so the Jazz neck and Custom 5 setup arrived Wednesday, got installed yesterday, and is being pulled out today.
They sound out of tune even when in tune. Horrible.
So back to square 1.
Vintage to medium output, say 8 to 10 or 11 kohm DCR, roughly even mids and treble, Seymour Duncan. Trembucker bridge, regular neck.
Thinking JB or 59/Custom hybrid trembucker in the bridge, open to suggestions for the neck please.
The JB is a high output pickup that doesn't match what you described. It can do classic rock but it wouldn't be my first choice.
I would really consider a 59 or alnico pro 2 set. I think they're both perfect for classic rock. In a strat they don't have any of the issues with being boomy compared to a 24.75 guitar.