Thomastik-Infeld JF344 flats were a game changer for me. I have some basses strung up with the usual suspects (chromes, labella, fender) and had tried D'Addario half-rounds, and they're all great but the TIs immediately gave me the sound and touch that I want. I wish they were cheaper, and I don't know how long they will last, but I love them. They make me want to play bass.