(No doubt the Great Oracle approves of the Beastly refs.)
OK - 'dirt track' I'd guess too; none o' that IOM precision dicing. So: since the shape has to somehow accomplish that which human lore + feedback does on land, umm where shall the skill enter in? T'would seem that, overcooking a 'turn' would result in merely.. increasing the turn radius automagically / not elbow burns (splashes?)
But then.. I have little feel for What those folks do on water anyway - except with water skis it's apparent where the skill is needed, just to stay up. Played a bit with a speedboat at Tahoe once. Cute but tame, and seems to bring out the vandal-mind in most practitioners (and.. did I mention noisy?)
Hmmm .. guess my Interest would be more in the vein of a video clip ~ 3 years back, about a (local!) guy developing a personal submarine! Lie prone in a tube; imagine an optically kewl paraboloid front. Don't recall max depth he was aiming for, but it was in hundreds of feet. Maybe even deeper.
Alas, such a thing would be unlikely to reach prod. levels where anyone could afford it - but imagine an entire new world to explore, without the rigors of Tri-Mix and the usual SCUBA training and hazards. (Not to worry: exceed crush depth and.. no time to worry.)
He seemed to think he could make a commercial one, though obviously not into the plan for usual bizness reasons. Physics + new materials - under $20K? Don't think I heard his hoped-for price. 3-D: now That's what a watercraft *ought* to do !!
Ashton Beebe Verne