Howdy, I've got two sets, one of each, they are used. I paid $25 for each set. The Jazz are of unknown make and appear to have had around 15 - 20 feet of wire removed. They come right out of the covers simply and have no marking. Something was removed from the bottom of the magnets though. The both measure about the same, 5k5 ohms, my bass player bud says that 8k5 is good and tasty for a jazz pick up; and that I should return these. The P bass measures 5k4 on the black/white wires while the other with both white wires measure open. These are stamped 1182. The guy I got them from siad they were from 1972 but from those numbers I would guess NOV of 1982. I hear that Duncan rewinds these as does Fralin. Duncan goes to the problem area then adds wire while Fralin comepletely rewinds from scratch. What is the difference in tone if any? I wanted to use the Ps in a MIJ P bass that I just picked up E765236. Is this a 1986 model? it is candy apple red with a maple neck. Any recommendations? Should I just return the jazz set and have the Ps rewound? What is a ball park figure for rewinds? Are the pots worth keeping in MIJs or should I just rebuild it with American stuff? Thanks in advance as I'm new to all this and I'm sure you've answered similar questions many times before.