Re: Who can rewind (unwind) a pickup for me?
If it's 13k, it's way more than likely wound with 43 gauge wire, which is thinner. Taking it down to 8-9k would put it in vintage land, equivalent to about 6.5-7k with 42 wire, which is what they use on the Twangbanger.
If you're just trying to add a little sparkle without messing with the output too much, I'd shoot for 10.5-11.5k. That would roughly be the 43 equivalent of Twangbanger range.