I keep reading this about J pups. And it makes sense to me, to a point, and then I get confused. Ive read numerous thread with people basically saying the pups arent really different, but then a few guys will sometimes say they are a decent bit different. Ok, so generally a set of J pups is wound the same number of times, but because the bridge pup is a little longer, it will have a higher K rating (ex: DCR 7.0K neck vs 7.5K bridge). And then because strings vibrate less at the bridge, this compensates for that difference in output and tone. Am I correct so far? But the difference in K rating I see on some sets, is a little different than what I see on other sets. Either way, with all this said, would putting a bridge in the neck or a neck in the bridge produce different tones? Or are the pups pretty similar and is it their position under the vibrating strings that really provides the difference in tone? And then on top of all this, certain basses seem to have the same pup (at least length wise) in the bridge and neck position.