I just wanted to write a quick review of these pickups. I'm talking about the True Single Coil Lindy Fralins... not hum canceling. I haven't had the chance to try them yet. This review is being performed using a 4 String Fretted Fender Jazz Bass - Alder/Rosewood tonewoods but on the with the review. So I'm on this "growl" kick, right... Well, I find these pickups to be the most raw/growly sounding Pups I've ever hear and here's why. They have alot of character in the low mids, which I find to be, yes... "growly". Sorta a raw, loose, rusty type of tone. Very Vintage! Lindy winds these using a "hand wound simulator process". This makes way for a more complex/dynamic midrange. I have a coupel times, second guessed the Fralins and put in Nordstarand NJ4's, Fender Custom Shops, and also went back n' forth with the stock Fender Jazz pickups. I don't know why I kept going back n' forth, but I guess just to reassure myself. You might even remember me doing this from a couple of threads a little while ago. I like the Fralins the best, hands down. Well like I said, the Fralins have a very unique, raw tone to them when A/B to the others. A little loose on the bottom end when comparred to the others. Their attack level isn't quite as quick as the others but thats why they are the "King of Vintage", right? They don't a very tight bottom when compared to the others either, and they are not quite as bright. Most of this pickups character is in their Low Mids/Mids. Their bottom is like I said earlier, somewhat loose... I would also say a little dirty, which is good to me. I like the loose bottom especially when muting notes. They still have alot of definiton though. They are very clear, but loose and raw... if that make sense. It does to my ears. A notable mention about the bottom, while its somewhat loose, the low mids are very tight and defined. They sort of tapper off down there. Weird, but awesome to my ears... The low mids deff have a nice growly character to them. Very raw/growly/sandpapery character like. Not smooth IMO at all... in fact, the very opposite. Did I say rusty sounding? At first, I didn't like that they didn't have the same present attack level as the stocks pups, and I didn't like that the Nordstrands had a tighter bottom end at first either... but I've grown to love these pickups. If you want a vintage sounding pickup, that has a sorta rusty tone to them... rather raw sounding with nice low mid growl, check out Lindy Fralins!!! They are my favorate so far. I know I used alot of subjective terms like, loose, rusty, raw ect, but thats the only way I could describe the tone. I hope it helps anyone out there considering Fralins.