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@tempest51 wrote:

Hi Mike,

According to “Boat tuning for speed” by Fred Imhoff and Lex Pranger,

Well, there is a lot of debate about that theory, about the roughness of the sandpaper and also whether the hull should be sanded with longitudinal, lateral or with small circular strokes. I believe this to be relevant only for the top three boats in our fleet. IMHO us lesser deities, are better off with a smooth shiny hull to which the dirt does not stick and that saves us a lot of cleaning work during the season.