I wear mine where the strings are right at belt level.I set all my straps to the same height allowing for differences in horn cutaway. I never understood a bass hanging under your chin.Your fretting hand may reach higher but the kink in your arm,wrist and elbow for the plucking hand always aggravated me.Also,is it just me or does it seem like everyone who plays with their bass jacked up high seems to lean backward when they play.That's got to put a terrible strain on your lower back.