Gday Jeff
Originally Posted by JeffS
the downhaul may not have been the problem but it does make the sail take an aerodynamic shape

You mean that the main may not be a inverted wing which pulls it down.

But the trick is ofcourse to create lift with the sail just 5-10 inches out of the water. A positive aerodynamic shape.
Ball in the masttop will help you also by that.

ronald
RAIDER-15 (homebuilt)

hey boy, what did you do over there, alone far out at sea?..
"huh....., that's the only place where I'm happy, sir.