I don't want to continue to prolong this fight - but making a quality symmetric curved foil is incredibly more difficult than making a straight one. The tooling alone requires a lot more material, engineering (with quality software tools), and time. The foils on the F20c are truly a piece of art. They're very very light (they float!) and they're obviously very strong. I've not yet seen an early generation a-cat with curved boards that doesn't have some sort of issues with the fit/function of the curved boards in the trunks either. These boards fit very well in their trunks. They come up so easily (and float), you have to watch that you don't hit your forehead when raising the board because of the radius that it travels!

The fact that they can make these boards available within 20% the price of an F18 straight board is pretty good.