True Blue,
The two types of jacklines are not really that different . The one on the deck keep you attached to the deck. the one on the mast keeps the luff slides attached to the luff on the lower part of the sail. The jackline is attached to the luff about 9' above the clew. It runs though the luff slides on the lower part of the main.
I would imagine that I could also control the draft by combining the topping lift, with the down haul and the jackline. By cleating off the jackline and easing off of the down haul a little bit it would be possible to move the draft with the topping lift. right??
Nolatom,
the main is new UK sail with only one season.
Giu,
thanks for the tips and for taking the time to make the
videos. I have some pictures of of the sail but I don't have enough posts to post them.