Kai Lenny is a freak. If there’s something to be done on the ocean and with a board of some kind, Kai’s going to be world class at it. He’s a champion in many a discipline. It’s not hyperbole to say that he’s the best waterman of a generation — or possibly ever. He sat down at his place in Maui with James Casey of The Casey Catch Up to talk about downwind foiling, something that he’s uniquely qualified to talk about.