Too much ski tip in the water during both on and off-side turns. Too much ski tip in the water during off-side turns, causing skier to break at waist. Too much ski tip out of the water during on-side turns. Not enough angle to get across wake. Ski is overturning and gets too much angle across the wake.
Ski changes edges too slowly.
Ski is too responsive. Tilt the front of the fin down. Move the fin backward. Move the fin forward. Move the fin forward.