i have two p basses, one a 2000 american p bass, and another one is a pbass special (p and j)that doesn't have a name on the headstock but i'm sure is a fender and a very nice one at that. i'm not sure what pickups come in the americans but i like it and when i have my bass boomers on it coming through a 400+ it sounds, well i guess strong is the best word to describe it. the other bass sounds pretty similar so i want to change the pickups to something really growly to kinda mix it up a little. what are some goods pbass pickups out there? i've heard good things about the 62 fenders and the quarterpounders but i don't really know what each pick up does? any advice on which pbass pickup to use on the new pbass that sounds fat and growly? thanks.