The Wave Deflector is a piece of equipment that no serious downwind paddler should be without.  This simple but very effective tool keeps excess water out of your cockpit by deflecting the flow as it pours over your surfski’s nose and front deck.  This is of course an obvious benefit.
Recently it has been used with great success by Jasper Mocke on his low volume Fenn Spark surfski, and also used regularly by Dawid Mocke in a double surfski.
The Wave Deflector is stuck on using duct tape.  One sticks the leading edge down onto the deck.  One can also use velcro for an easier to “put on and remove” option.  Others have gone the permanent route and use epoxy.