Works well to keep your spare Greenland paddle on your deck. Easily switched between boats. I appreciate it as an instructor since I can quickly store a paddle on the deck. I use it frequently for photography as it is a quiet way of storing my paddle, not to mention quick. My one complaint is that in swell, you can catch the end of your paddle in the water and the port will slip down off the side. It doesn't come off the boat, but it does allow your paddle to drag. Not a big issue if you don't paddle much in surf.
