Just lacking the 16 & 20 data points
Hey Alan. Just stumbled upon this section of the HOW site and saw your response @ Polars. Interesting, as we went through the effort this summer on my h 28.5 to capture the winds speeds you listed 'cept the 16 and 20 knots. Just couldn't get out on those days when the winds were right.
Had to cobble up exactly what you created from a combination of Polars from C-30 and a J-30 charts. Perhaps next year we'll fill in the rest of the blanks. It's nice to get affimation that we were/are kindsa on the right track.
Enjoy November, whatever it holds for you. take care.