I can't decide if I should get Thomastik-Infeld Flatwounds, or Roundwounds. I read about the silk layer and how the TI's get a warm and woody sound to them, which made me interested in the first place. I was wondering if I should try flatwounds too. I've never played them, but I hear that they give a more upright-like tone, and that the Thomastik-Infelds are more responsive than regular flats. Do flats give a warmer, more wood-bass like sound? Basically, I want to be able to play with acoustic instruments like piano and get a sound that's not out of place in a jazz setting, but still cuts enough without sounding twangy and metalic. Any suggestions?