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Old 22nd May 2009, 10:34 PM   #24
Ken
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Join Date: Aug 2006
Location: Dallas, Texas USA
Posts: 799
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Interesting discussion.

The only theory I can support is the sanding of fins to minimize spin out. Faster or slower I can't say, but there does seem to be better control with sanded fins (formula and slalom).

When fins do get dinged or scraped, I sand to remove the abrasions. A half polished, half sanded fin doesn't sound like a good thing, so if my fins come unsanded (rarely), then they get sanded before use.

Regarding boards, I sail them the way the come, some polished, some with very fine sanding. I can't tell any difference.

What do the America's Cup boats do. If anyone has the money to research the fastest hulls, it's them. Polished? Sanded?
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