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Based on the video, the whisper seems to foil in the light stuff very easily. It seems like there would probably be too much foil area for the heavy winds if this works anything like sail area does. Time will tell on that speculation, but have seen moth videos where they said that it was too windy to get downwind. That could be just from too much sail area, but it could have something to do with foil size as well.
From Kite boarding, i know that Both foil aria and Sail aria
must be balanced , to match the riders weight and speed he
wants to go, for the wind that day.
And that brings up another question : "why are so many
cat sailors, so Reluctant to reef a main sail, to match
the power of the wind on any given day" ?
