Well, i've just started my own custom warmoth project. Ordered it today, and well i have to play a MIM jazz graphited out until i get it. Conviently i went with J pick ups. So, i figure, i can get J pickups now, throw them in my MIM J, get some decent tone, and then bam throw them into my warmoth. And then throw the P/J Set of EMG's i have into my jazz (yes i know i'll be drilling into the body, big deal, did it on my p-bass). Ok anyway to get to the point. I need a pick up that has balls. The pick up has to achieve a real nice "growl" if you will, and have some bite to it. Looking for something similar to Geddy Lee. So far, it looks as though the Nordstrand's are leading the way, i've tried EMG's and they just don't seem to do it for me (P/J wise any way). The NJ4SE looks to be what i'll be going with currently. But i have some questions. It is active right? And then, does it come with pre-amp an such. Or does that need to be added. http://www.bestbassgear.com/nordstrand-pickups.htm is where i would probably buy- best price i've seen, but feel free to inform me of cheaper, or other models that will give me what i want. So, if i need a pre-amp, i was thinking a Bartolini, possibly a 3 band EQ? Bass/Treble Stack Volume/Volume Stack and mid freq push pin? Are stacks just essentially knobs on top of knobs? On my warmoth i'll only be getting 3 holes, so i have to make the most of them. But are the Bartolini's any good? Or is aguilar the only way to go, i don't really wana spendmore than the aguilars cost. So the J and U Retro's are pretty much outta the question. So just so you guys can see what type of bass it'll be here i go... Body= Swamp ash bottom w/ Quilt Maple top Dinky P style Color= Emerald Green Dye with Black back Neck = AAA Birdseye maple w/ Ebony fretboard Pick ups = *Possibly* Nordstrand NJ4SE Pre-amp= *Possibly* Bartolini? Basically thats all, thanks in advance guys.