I can't resist putting in my two cents. In the attached photo, the chase boat was reading 35mph on the speedo (30.4kt). Now, I take this with a large grain of salt, BUT, I'm sure we have to be going more than 20kts. I'll have to find out if my new gps is waterproof for this summer. (I thought they were just for avoiding getting lost in the bush)
wishing you all flat water & high winds
AL