Paul I agree w/you 100% on LH being the pivot hand for those that are right handed. Your LH isn't really doing that much work, if you do it right. Your shoulder & back do more. As you say, the RH is doing all the guiding, twisting, pushing etc. I sometimes watch the younger kids get in a bin & scoop. You can see all the wasted motions they go thru just to get a scoop of corn. They'll pick it up & throw it instead of sliding it along in the scoop. It looks good for a little bit, but soon they're getting tired. | 
Right handed or left handed shoveler? Just for fun
