Lisa, You might want to seriously consider moving your jack lines out and away from the mast and attach them rather to the widest part of your spreaders, that will add a lot of extra clearance for your mainsail itself as it is raised and lowered, that is to say move the jack lines out away from the mast and out to the tip of the spreaders.
Lisa, You might want to seriously consider moving your jack lines out and away from the mast and attach them rather to the widest part of your spreaders, that will add a lot of extra clearance for your mainsail itself as it is raised and lowered, that is to say move the jack lines out away from the mast and out to the tip of the spreaders.