Pilot using a wide angle on a turn NOT dropping their shoulder, instead using body lean and minute hand adjustments.
Pilot position where pilot is not touching water.
Just feet in water drag adds a small amount of stability. The pilot is controlling the thrust and has reached a "Forces in Balance" state, forward motion and the lift are in balance.
Waist, hips in water, medium drag, a little bit of lift. Drag provides stability but the pilot is learning now to control the thrust to provide lift and forward propulsion.
Chest, shoulders in water, lots of drag, no lift, drag provides stability to learn to steer. Tiring for long periods of time.
Person flying the jetpack. Secured in the harness of the jetpack and directing the thrust of the jets.
Driver of jet ski, controlling the throttle. The person in charge and responsible for the pilot.