This is kind of a strat question but I think it applies to all guitars pickups. I was going through some old pickup sets I had laying around checking them with my ohmmeter. On one set, which are old Fenders, two of the pups measured like 6.3k and the other was measuring around 300k. They're single coil strats by the way. Now, obviously, the pickup is bad, but I would expect to see an open if it was. What could cause the resistance to skyrocket in a pickup?