this is the hogarthian forum right? i think that DIR is left hand, but i've been doing both. i don't like the left hand when i'm fiddling with buoyancy control because i don't want to be flashing errant light signals. the right hand obviously complicates an OOA, but there what i've been trying to do is a quick hand off to the left hand before donating. this can get complicated since if you don't get the handle around your left dryglove you may have a choice between dropping your light and getting your backup reg in your mouth. i need to practice more to see if this is really workable, or if i should just use the left hand...