Dumb question: 7.3k to 14.5k is almost 200%, aren't the calibrated sets meant to compensate for position, and in the case of the mules the calibration is only a differential of around 20% or so.
Is this based on the vintage neck/bridge differential rather than a genuinely compensated output?
Back in the '50s I don't think there was
any "calibration" or differential between neck and bridge pickups. They just wound the pickup coils "until they were full" and used different magnets and bobbin colours in a fairly random manner, from all I've read.
As the guys have said, it's not worth getting too preoccupied with DC resistance. I have a couple of DiMarzio mini-humbuckers which are really quite low-output, but their DC resistances are 12-13K.
