i know i've been beating this to death, but i keep coming up with more questions. so i've pretty much decided to get dimarzio's instead of duncans. now...the model j's or ultra jazz? i've already read the bass player shootout a million times. i'm looking for all your opinions. i think i've decided that i want my jazz to have alittle more output, and sound more like a precision, or a hot-rod precision i guess. i'm worried that the ultra jazz may have too much high end (or too mid scooped), and that the model j might be too boomy on the low end. let me know what you all think about this issue. i play rock, mostly with a pick, and want something that's clear and well balanced. let me know...thanks.