It would appear from the video that it was beating the SP21 upwind and overall speed across the water.
This was just a kiter riding holding a GoPro.
First of all it is not just a kiter
he is a PRO ficient + extremely talented experienced "kiter"
He is very competitive and was using his awesome talent to race those two guys
I have explained that when the LW reaches 11 knots in any LW kite we can ALL be equal
But the person with more skills at kiting in LW will match or surpass them with his technique
LW has a different meaning from one person to the next
When a16.25/16.50 or 16.75M kite is parked low on 22m lines w/82kg rider on 135x47 TT
And he is planing fast holding bar with one hand and camera in the other...11knots power in kite
How do i know...sixth sense ? lots and lots of experience in real LW ?...
TRUE LW is by the way single digit wind speeds 7-8-9 knots and no more....and not 10-11-12
At 8-9 knots...no more..on 22m...he would need both hands on his bar...and sine to heck out of it
To generate momentum.....and in this light of a wind i do not consider that to be any fun
Experienced kiters on SP3 21 or Dyno 17 and raceboards would have BLOWN by him
That is the video we will NEVER see...because he could not hold on to his GoPro