I road my bicycle across the USA last summer. Near the end my mate and I were doing things like this to pass time. With some practice alot of things are not to hard. That being said, out of every trick we attempted, trying to ride with your left hand on the right handle and right on the left was terribly hard. We both nearly ended our trip early with some insane "tank slappers". I might work up the nerve to try some out on the BSA and get a photo