when ever i’m on my foil, i ALWAYS wear a leash. i wear it because i don’t want my foil to run away on its own and hurt anyone. yes, if you don’t have a leash, your foil will continue flying even without you riding it. i’ve seen runaway foils before. 
i fell on this wave and look at my board still wanting to go forward. if it wasn’t for my leash, my board could possibly fly all the way to the shore. and anything in its way will get cut in half. so to all you foilers, please wear a leash!
