Hey thanks for the tips, I have been too busy for a few days to log on...but I did finally snap a couple of pictures. On the mast rotator limitor, I do just have the arm with a single line jam cleat on the boom; if I correctly understood you explanation, I am supposed to keep is it tight when I am in heavy air (especially headed up) in order to provid less of a lifting foil on the main and leave loose in lighter air or off the wind in order to create a deep belly and therefore a lower speed foil. Is that right?