Thanks Mark, Shantaram. Its a pleasure to hear people enjoying it.
Regarding the surface tension thing - Andy and I chatted a little about that. As far as I can gather, the effect of ruffling the surface or 'breaking' the tension is negligible in mitigating the impact forces experienced from a big fall like Nicky's Leap( ~40mph?).
I think its possible to soften the blow with super bubbly water like in pro diving. I recall a conversation about a film team employing divers to feed bubbles in the the Vivian pool, possibly to the same effect.
Pete