Now THAT was epic. That is some of the smoothest riding I have seen, not too jerky, but fluid. What is hard for people who don't foil is the little nuances of movements in rolling feet and hips to keep it driving. Great find!
sorry this doesn't belong here but I found this video
Mesmerizing to watch. Long paddle back out though.
I have just arrived home from a sailing trip on Bass Strait. We were cruising along with 2+m swell rolling through for days on end. The 12m catamaran was getting a big surge of acceleration from each swell. Loads of dolphins and albatross riding the swells.
I reckon you could tow into one of those swells as far out in the ocean as you dared and just ride it until your legs gave out. It's an awesome thing to think about.