I took them off a 5 string SX and a vintage Precision because it tended to make all instruments sound alike. The 5 string now has Rotosound steel roundwounds and the Precision has Dunlop nickel roundwounds. I now have the TIs on 2 basses: a fretless SX short scale and a Brice Violin Bass, also short scale. It is little tricky fitting the standard length strings on a short scale bass but in case anyone is wondering, it CAN be done. These strings rule on fretless. Although they don't growl enough if you really want that biting roundwound mwah, if the setup is correct, low enough, you get a good approximation with a lot of other timbres available. On a fretted bass you get a highly versatile and unique tone. On my long scale 6 string fretless I'm keeping my Chromes for now as they have a different timbre, but I'm looking forward to the day the Chromes need replacing and I can put the TIs on. Yes TI Flats last a very very long time, it's too bad the initial brightness fades so fast.
Look no further.