I've never been a fan of Nacras. They have been their own (and their customers) worst enemy over the years, regularly changing designs requiring existing owners to upgrade or buy the new thing. Their hype has always tended toward outrageous and their boats have been pretty ordinary in the main. Calling the 17 'Inter 17' was a lame attempt to make the boat appear to be an ISAF international class and now it's F17 to try to cash in on the formular trend which as Wouter points out, the inter17 definitely isn't.