Thanks Wouter this is very helpful...

Quote
It will never become a 20 footer as no F16 every will with the possible exception to the Stealth F16


What do you mean by the quote above?

Also I read somewhere that carbon masts and the consistent sun/UV of the tropics are not a good match. I want to leave the boat on the beach with the mast stepped.. Does that mean a alu mast is a much better choice?