At least on mine, after you got rid of the cap, the bridge pup was pretty strong. I kept it raised as high as it would go without farting (happens when strings are too close to pickup), and rested my thumb on it. That's probably where the Jacoish tone came from (playing back by the bridge).
Before I got rid of the tone cap, I hated the bass...it was all neck toaster with poor definition. I bought my old one at "Wills Pawn Shop" in Cinti for $300 on a Friday afternoon, played it Friday night, and was ready to get rid of it. A friend in the air force who knew electronics looked at it, and saw the 2 caps--got out a little wire, and jumped one, and the rest was history. Played it Saturday night and it was awesome.
They are odd beasts, but sound great once you adapt to them.
YMMV