same here, I play my bass well up towards my chest, however, this is mostly for my left wrist's comfort; the straiter I can keep it, the better. When I play guitar though it sits alot lower. Basicly I'm saying what everyone else is saying: just figure out what's comfortable, and you'll be doing everybody a favor.

And I can tell you, some folk can play with their instrument slung down around their nads, look at Norwood Fisher. Of coure, maybe he considers that Warwick Bass to be a good substitute for a cup.