I have the first FX One cats in Hawaii. Owned a couple of 18's and still own a Hobie 20'. My problem is the hook that is attached to the main headboard just doesn't seem to lock into the hole at the top of the mast. It's even more difficult to douse the sail. I like the boat, but, I am frustrated, and, a couple of the other sailors have looked at it, and don't know either. Any Hobie 17 FX One sailors out there? Aloha.