i've recently started a new project -- a three piece playing aggressive, noisy, slightly experimental stuff. i cherish my t-40, but have bought a squier p-bass purely to get more of that growl two notes: first, i live in a small enough town that i don't have the luxury of hitting up a bunch of well-stocked shops to try out gear, so any constructive input is appreciated. second, when i talk about 'growl' and 'noisy', i mean i'm chasing a david wm sims (scratch acid, jesus lizard) style tone, with more distortion my questions: -pick ups -- who really delivers that grinding growl? what i read seems to lead me to emg gzr or wilde/bill lawrence p-46, but i'm open to suggestion -strings -- for aggressive, dirty noisiness, everyone at my local shop points out ernie ball's cobalts; everyone i know that's played them (all of them guitar players) gives them a big thumbs-down. i currently use heavy ghs boomers -feedback -- a rat pedal gives me the sleazy dirt that i want, and when i play through my buddy's 600w mesa tube combo (with 8s?) in the practice space, i get all the feedback i could want... but when i play through my own 800w solid state swr (with 2 10s and a 15) i get none (even at ear-shattering volumes)!! i don't have a lot of experience pushing bass through tubes - is it something about the tubes that provides the feedback? is there anything i'm missing?