Nice cat! I have the feeling that you has used the idea of “too strong has never failed” at least for the hulls.
We have been doing similar things on the F12 including the mast, check the F12 thread.
You also find some stuff on
http://www.gust.ax/galleryIf you are not an engineer get somebody with good experience of composite and spars to make the carbon setup for the mast, guesswork is a costly and time consuming thing when carbon is involved.
