Took me a long time to get into flats, and even longer into flats on a Jazz, in part because many years ago a guy in a music shop told me "flatwound string sound dead". OK, they're kinda definitive on a Precision and accepted as such, in so many respects they're even more so on a Jazz. Wanna hit some retro heaven? Flats, back PUP on full, front PUP rolled off a little bit, and a pic through an all-tube head. Sorted π