Analysed, strictly from a soaring PG point of view :
*The one screenshot from , :43 ; look how far out the rider has the
bar Out , so the kite is flying Fast .
**The second shot from 1:26 min --- now look where the bar is ,
(almost Full in) ; and it was in for most of the climbing phase while
he was going Up. In a PG , we say he's flying at minim-sink rate speed
so as to utilize the Lift (Better).
***He mostly does figure 8's (11 to 1), while in the lift ; so he's staying in
the thermal, (not moving out of the lift).
If this happens to you, then leave the bar at trim speed (Not all the way in
or out) , so the kite is flying faster, (but stable). Don't do figure 8's , from
(11 to 1) to stay in one spot ; but do your 8's from (11:30 to 1:30) or
(10:30 to 12:30) while going in a cross-wind direction , so you get out of the
lift as fast as possible.
If i were in a PG or HG ,I would try to find the center of the lift, and
stay in it till it dissipated ; but this is a water kite , and it's best to Exit
the lift before getting too high, (especially without a reserve parachute) !
Good job to the kiter ; he didn't Freek-Out !!