How's the tone on this bass? I've heard it's very warm, which worries me a bit. Can it get bright/percussive, or should I just go for a soundgear?
I can't speak for the six, but I've owned a fiver. Mine was pretty much one tone, maybe "warm" like you described. The best thing about Grinds (if you get a good one- mine was) is that the basic construction is pretty good making it worth throwing different guts into. Ergonomic also. Un-modded Grinds are a one-trick pony, but it's a pretty nice trick anyway.