Carl,

#1. I've been using an I-20 spin, on my Nacra 6.0 for years, and will in the GT race, like last year.

#2. Thanks for the history, but I need type of bolt, etc. The manual says it's a 2x5/16" bolt, but the one I have that snapped, looks like it has a different core inside, as I said, my diesel machanic/ground crew, says it's a zinc coated bolt. I bought my boat from a guy with a rigging shop on Clear Lake, he may he changed them, I"m trying to contact him also.