Bill,
let it go. you don't even sail a tornado. Carbon is a great material and many sailboat masts are built with it. Granted they are still learning the best way to go about it,and it is more costly, but it is the future.

On your sailboard example you mixed the apples and oranges. Carbon didn't replace glass masts for racing. Racing masts were alu. and during the first couple years of carbon masts some racers still used alu. as the first carbon masts were too stiff. the glass masts are used in the waves. they still are mostly glass. Windsurf masts are labled by their pecentage of carbon and by a system for gauging the flex characteristics. Some of the masts are skinny and some are the same as they ever were. The racing masts have more carbon and thinner walls.

For most things on a cat-lighter is better