Aido,

Viper is a very good boat and you understand what I mean by close boat. But no I'm not working for big manufacturer, neither for small ones.
My business is very far from sailing.

Read again my argumentation and you can make your opinion and may be vote.

You noticed that "clearly the f18 sail material is already heavily Limited." so F18 obviously, cannot be a development class.

A class or C Class are developpment class.
It's easy to see the difference, even the name express the path of F18: it is not "18 class" but Formula 18.