Read the bit in the rules that state the intention and spirit of the class is to provide fair racing on similar craft. the design criteria of a good foiling craft are so different to a sailing craft that they cannot be called "similar". If hydrofoils were allowed, a Trifoiler or Rave could sail against a F16 Taipan, and there are NO similarities. Reminds me of the America`s Cup when a catamaran won out against an aircraft carrier with sails. I think development needs to stop somewhere for sanity sake. The moths are a great idea but I think they will split into two classes, something we certainly don`t want happening in F16. Besides, ISAF rating doesn`t understand how to rate a boat with overall length of 5,0m and waterline length of 30cm. I tried, it says it`s a LOT slower !!