my 81 has the original sail i think. its not great but its ok. i could look up at the sail from underneath and see the sail had a semicircular chord. i sanded the front half of all the battens, gradually tapered until the 'round' part of the stock batten is sanded off to the 'flat' part about a foot from the end. now my sail has a nice airfoil shape, and i think its faster. i also seem to be pointing higher.


marsh hawk