I want a six string bass. I don't need a six string bass. My main basses are a G&L L2500 Tribute and a Bongo 5HS. The former has flats; the latter has rounds. I'm in my late 40s and play in a power trio that has a Soundgarden vibe. I don't want to spend a ton (over $2k) and don't want to cheap out (sub $600). Ideally, I'm thinking around $1k to $1.5k. I'm open to buying used. Any specific suggestions?