The Rotosound flats arrived in the post about midday, and I've just put the bass away after playing the new strings for a while. Bearing in mind these are new strings, fresh on, they sound pretty good on a Classic 50s Precision (also new to me this week!). Good tight punchy sound, surprising amount of top, but that will probably fade as they wear in. Less sweetness of tone than the LaBellas I have on the other basses, but I suspect they'll work better in the band. Time will tell!