While the video doesn't show us much, it proves one thing... It's alive!
Blue Springs fish chase - YouTube
The accel on the 2nd pass actually looks ok... Other than that, can't tell much from the :01 sec of fin action in the clip.
The rubber spring in the actuated lever looks potentially promising (assuming its been sorted correctly).
We will see!
Even if this fin isn't what sets the next DYN WR (I'd doubt the hydrodynamics of the shoes are built for WR DYN performances), I still hope that this works well for casual / recreational freediving, pool use and spearfishing.
My monofin is clunky / fragile, comfortable (bearable) for only up to an hr and large for travel. I'd like a "monofin" for comfortable / practical
use and easier travel. If I can use it in the pool, bonus! And if it's rubber, maybe I'd get away with it for UWR and UWH for fun!
Call me a little girl, but I like the shape!