Computational Fluid Dynamic test results. Both fins were tested with same parameters;
22.5º angle / 10 mph water flow / Top down view from mid-section of fin.
Red is accelerated water / Blue is drag or slower moving water
A BREAK DOWN OF THE FIN
The Hollow Point fin allows the normally opposing force of water to pass through the fin, therefore enhancing the maneuverability and performance during turns.
The TECHNICAL BREAKDOWN
When the laminar boundary layers pass and separate on the leading arm of the fin they attempt to rejoin as laminar on the rear of the leading arm. The rear design
of the leading arm forces the boundary layers to create acute turbulent vortices that force the surrounding laminar boundary layers to repeat the same boundary path for the trailing arm as it was for the leading arm.
These vortices can faintly be heard while traveling at mid to high speeds. Don't worry, they don't create any drag or slow you down, they stay tucked behind the leading arm!
These vortices however, are important. They allow the water to become quickly chaotic in the center opening upon a forceful or rapid turn. This lets the turbulent water near the center opening to become slightly laminar and accelerate through it. The forces that would normally be present on the leading side of a standard fin during a turn are now greatly lessened with a Lucid Hollow Point fin.
For those that can follow and those that can't, it means high speed control with looser turns...Cheers!