I know lots of people love their TI Flats (That's Tomastik-Infeld, for those not in the know). I'm probably stirring up a big hornet's nest, by saying this, but these strings totally did nothing for me. They're a lighter gauge than I usually play, which was my intention when purchasing them, and felt ok under my fingers. Not amazing, but not worse than any other string I've played. The tone just wasn't there for me though. Not thick and full enough for me. They left me wanting a fuller bottom end, particularly on the E and A strings. I just couldn't get get the notes on the E string to stand up and declare their presence... So after one rehearsal, off they came... Maybe they'll be a better fit on a different bass. I'm playing a P-Bass with 62 reissue pickups...I like the DR Flatwounds much better on there.