SH-1 '59
Stock '59s are single conductor shielded, but can be ordered from Seymour Duncan with a 4-conductor shielded cable for a small upcharge, I think 10 to 20 dollars. Not sure which type came in Bluesbirds.
I put 2 Duncan Pearly Gates pickups in my S-300 and replaced all the wiring. I put in a new selector switch, phase switch, output jack and 4 push-pull pots (the old wiring harness is intact in a box). It's wired like the Jimmy Page Les Paul, so each pickup can be split, switched between series and parallel, and switched in & out of phase with each other. The sounds are all different & usable.
Dirt