Hi Dan,
the Hobie 18 guy at ebay came back to me with a foot size of
98 inch, being somewhere at 8.17 feet. I measured the distance from the mast (foot) up to the place where the bridle meets the forstay. This is short of 6 feet. This beeing without any loop in the jib sheet, I can't imagine that a 8.17 feet jib can work ??????