I am using the skills I learned here ,windsurfing at higher speeds to monitoring my fitness SUP sessions. (My new SUP was designed by Craig Loomes, who I met through this site).
I am doing around a 4 kt nautical mile. For higher speeds windsurfing doppler is more accurate, right? What about at lower speeds. My non doppler top speeds are higher by a half knot or so.
It is cool you can see each stroke as a spike on the speed chart, and I mount my GT-11 on the deck so I can see my speed live as I paddle.
SUP when no wind is making my windy windsurf sessions seem easier. You just lean into it and go fast!
waiting out Hurricane Irene on Cape Cod MA.