Yeah, dolphins don't have to worry about losing energy by creating waves.

Plus I've also heard a rumour that they ooze a liquid out of their skin that reduces their skin friction. Let's see if the A-classes will try that!

I'd like to know the theory behind that bow design...it could be a nightmare to sail downwind in a blow without any reserve bouyancy! But it could reduce the windage upwind to the point that it adds up to a positive advantage.