I need some help. I've been a die-hard Precision guy for years, but I just got this Mexi Jazz bass last month, so I thought I'd give it a try. But after one solid session, I really was struggling with getting the sound I like out of it... it just sounded "weaker" and like the pickups were missing something... So, anyway...I went through my parts boxes, and found three sets of Jazz Bass pickups I could try out...I have NO IDEA what they are from, but I do think they are probably all from a Fender or a Squier product. Anyway, here's the first set: Staggered poles on both pickups, two different lengths, black and white plastic-covered wire, 5.13 and 5.33 ohms. The next set, an odd pair of four-large pole piece pickups, two different lengths, 5.12 and 5.34 ohms, gray single-conductor wire/shield. Last set, an odd match that came out of this bass, they both look identical from the top, flat poles, same length, but turn them over and they look like two entirely different constructed pickups, one with the two-bar magnets, one with a reddish colored base and the poles themselves are the magnets. 6.37 and 6.64 ohms. Anyway, if there's any Fender Jazz enthusiasts that can recommend one of these sets over the others, or at least help me ID what I have here, I'd really appreciate it!