As you can see to the left, I've recently had a bit of an epiphany with these particular flatwounds...
(Austrian strings: when I put the bass in its case, a little voice says, "I'll be back").
I've put them on my split-coil Precision, which has a slightly weak neck. I find my tone to be not yet hugely different to the fairly dead nickel rounds I was using, so best of all worlds at the moment. The flats will lose that, eventually. But I'm hooked!
If I really need to bite, then the single coil Precision still has nickel rounds on.
Amp is set flat-ish; as it's essentially a 2x12 setup, it's not lacking in top end anyway, so, on that bass, the flats will stay!
I grew up with RS66s, starting in 1970/71, so flats are way off my 'normal' area for strings. But these TI JF 344 strings are just the business. A piece of me wants to change the single coil over too. However, I think I'll not do this to the humbucking Telebass! Quite thumpy enough already...