Probably something similar to Crownline's FAST Tab system. Fin Assisted Safe Turn. They have a vented slot with a fin in it located on the sides of the hull to help them plane out easier/quicker, and the fins help grip the water for a tighter turn. They do seem to work. I had one with it on there.
Everyone needs a "fancy patented feature"! LOL! I remember one of my older Kawasaki jetskis that had "KATS" , Kawasaki Assisted Trim System!
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