The single back foot-strap cracks me up, esp because I've got a 46 on order, and it won't be much wider at the tail. My current joke is "room for both feet, so long as I only stand on one at a time" Seems pretty close.
Nice one, love the change of chop when you hit the side of the beach. Can see the whole concept of speed run there. And the sort of smile at the end. I know I would be scared at 44+ (not the age I suppose).