Proven Greenough 4a shape with tool less removal
It’s long been a Greenough 4a fan. That fin shape works in every board I’ve tried. I stumbled upon this fin that looked like the Greenough 4a, but with the tool less removal and decided to give it a try. Upon receipt I matched it against a Greenough 4a and sure enough, it was exact. It’s gives you all the benefits of a Greenough 4a, but with tool less removal. This is ideal with new boards when you are figuring out the sweet spot for fin placement. It’s nice to be able to flip the board over and bump the fin out of the fin box and move its position.