You're right on the leech cord. I discovered the purpose of the leech cord earlier this season, only to find that it was broken a few feet above the jam cleat. So, I bent a sail tie to the broken end of the line and hitched it to the clew. Taking the sail to a local loft this winter for repairs
(including the Sunbrella), so only a temporary solution.
I pulled the leech cord as tight as I did because that it would it took to make the top of the sail stop fluttering. This is also why the jib car is rather forward as I was trying to get more leech tension. At the point where the sail stop fluttering at the top few feet, I get this blasted curl. If I can't find the sweet spot between no leech curling and no fluttering, I'll ask the sailmaker
if he can do a nip and tuck.
Thanks for the help!
PS - Not surprised to hear about the halyard
tension. Right now the halyard is hitched to a horn cleat on the mast
. Not easy to keep the tension from the winch
. I am replacing the line and adding a clutch
to the mast
this winter, which should take care of this problem.