... except for the confusion amongst older players at your signal of "up 10". Solution to "is it a FHD?" is surely, simply, not rushing it, but then not holding too long at the end of the swing. Straight arm with hand at eye level makes visibility consistent with other signals. But mainly, it's the standard signal in the current rules.... except with normal arm height and hand shape, neither "well below shoulder level" nor "drawing a line". I think I've sorted it. Don't need a video any more.