I can't afford to try to many strings (and don't like changing tension on the neck too often), but I'm wondering... ...do TI Jazz Flats have much ol' time *thump*? I play a 6 (Ibanez SR496) and went from Elixir to TI Jazz flats. I got rid of the "piano sound" of the rounds, but the TIs seem to lack that ol' time thump. I'm guessing this is due to the low tension of the TIs, and the nylon inner-wrap. I'm thinking of trying some Rotosounds (I *think* I can get a 6-string set), but if the problem is my bass, I don't want to bother. My bass-body is (presumably low-end) mahogany, seemingly rather soft; I'm wondering if the problem is as much the wood.