The "bicycle" of stand up jet skis???

Very very cool! I for one would have never thought of how to convert the downward thrust of his jump motion in to a forward thrust. I need to watch this a few more times to figure out how that springy front end is transfering the motion....Any insight in to that?

My other question is simply how in the hell do you get going again when you falll in deep water? It doesnt look to have the stability for a deep water start.
 
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