I've played and play Pyramids, Labellas, D'Addorio Chromes, TI Flats, GHS, Roto Jazz, what have you. And I honestly can't say which strings sounded and felt best. If push came to shove I'd probably say the Labellas and the TIs (but many players feel these are too soft). I think you'd be hardpressed to find a set of flatwounds these days that does not sound good on your bass.