I read this update about the new fin:
The chevrons reduce cavitation, maintaining the ski tail’s depth in the water under duress. And their upward angle increases their efficiency as roll angles and smear levels increase. This maximizes tail support when you need it most—during the high-speed, tight turns that typically follow late, narrow, scrambling approaches. The pro model increases tail hold so much, it can be run .030” to .040” shallower than the original WhisperFin, which in turn further reduces tip-rise out of turns and increases acceleration.
Sounds exciting!