Al Suydam, who won the US 1M championship with a glass over balsa boat at Mystic a few years ago, built his Yankee III the same way:
http://www.swcp.com/usvmyg/YankeeIII/comments.htm
This makes it the first one outside my prototypes. He’ll be sailing it against one of mine at the USVMYG National Regatta in September.
Cheers,
Earl