Agreed here. The F18s are at least as tough as the Nacra 20s. I would argue they are a little tougher and have a longer top level racing service life since the building techniques have improved to keep up with the open class competition. I feel like my '08 Infusion is still extremely competitive and hasn't lost a beat. I never got the feeling that our Nacra 20's held up quite as well or long.

When you do see a problem (like in my case where a daggerboard trunk tried to take a leave of absence through the bottom of my hull), it was a manufacturing problem and not a design issue.