And the answers I've gotten to the long hose under the light cord question are a perfect example of why I don't try to rethink the system . . . Having had very little experience with carrying any sort of deco bottle or stage, I wasn't thinking about having to clip the light repeatedly during a dive. There's ALWAYS a reason why the DIR procedure for something is the way it is.
Mike, temporary holds are perfectly OK. There are all kinds of reasons why you might want to transfer the light temporarily to the right hand. The key is to learn to do it smoothly enough that your buddies don't turn around to see if you're OK
I dive my goodman handle on my left hand, but I do shift it to my right hand when I want to dump air from my bottom valve, also I sometimes shift it temporarily to the right to allow Argon into my left glove...
Having the fist clenched for a period of time, my left hand is not as warm as my right. I then just shift hands for a second and flex my left hand and then resume my diving with the handle back on the left hand.
Mike, temporary holds are perfectly OK. There are all kinds of reasons why you might want to transfer the light temporarily to the right hand. The key is to learn to do it smoothly enough that your buddies don't turn around to see if you're OK