Well, I put some ghs flatwounds on my Amercian Standard P-Bass yesterday. I've always played roundwounds and wanted to see what flats sounded like. Mainly I wanted to tone down "The Chunk" a bit because lately I've been playing with a lot of acoustic guitars. It still sounds like a P-Bass, but one from a motown recording via 1967. More thump-y and not aggressive - definitely will work for acoustic guitars. Not sure how it'd cut through a rock mix with drums, but was tweaking the mids on the amp enough to get that effect.