At 1:29 ; it appears the Kite-board with the foil
is out-front . The kite is about $2.5K and the foil
with board is close to the same ; so for $5 grand, you
can beat a Much more expensive machine !!
Part of that is because the kite is probably on 27 to
30 meter lines ; so it can catch cleaner air, since
the center of effort, is coming from 10 to 15-M above the water.
Also , the kite is helping a Lot to lift the weight
of the rider out of the water, so the foil can fly at a
lower AOA than the sailboats.

I got a sponsor, to learn to kite-board with a foil this
summer ; my Hobie 21 will be use a LOT this summer for
camping trips with all my kiteing equipment at Lake Mohave.
Good or Bad, I'll let Ya know , how my foiling experience goes ...

Bille