Sarge, will you help Mike and I construct one and the go off it with us?
The math is actually quite simple to determine where he'd land based on his speed leaving the ramp, his mass and the angle of the ramp. However, it would be impossible to ensure he was going the exact speed he'd need to hit the pool. At the speed he'd have to travel, that becomes an awful small target. But I still love these kind of videos. They should make some where they miss. Seeing him bounce on the ground would be more entertaining.
of course the "silly" things like dry spots, not going fast enough, angling wrong, not being in the right position all kind of make it not worth the risk.