the guy that spent <$4000 and can get big air and can set up and pack his gear in <10 minutes and put it in the trunk (or bike) wins every time in my book.
First of all these conditions are the sweet spot for the Moth and 49er. For pure speed though the guy on the moth regularly trains in my backyard and in 10 to 15 knots is really tough to beat especially on a reach he pumps that sail like a crazy mofo, gusty conditions can help competition if he goes off the foils in the lulls. Under 10 knots 49 will kick ass those things are flying around in that crap all day long around here. Over 20 knots kite is king and if there is any significant chop or waves it won't be so close.
Anyway I'm sure this marketing clip wouldn't be posted if the Cab kite didn't dominate
I would have liked to have been there just to get a 25 foot aerial view of the competition