I use the Hobie heavy duty web leash. at $19.95us it would be hard to make better for less money. The coil one is the same price, but I don't feel it could handle the stress if a wave took the paddle at sailing speed. I attach it to the hull at the front right aka x-bar, and so far, use the paddle holder built into the aka. The TI rides so much higher above the water than the AI that I haven't yet needed to protect the paddle from hungry waves trying to grab it. I think much of that it the longer larger ama. The excess leash I wrap behind the daggerboard handle so no leash slack to get in the way.
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Hobie Island Sailing since 2006