Agree we need to be more innovative in improving platform stiffness. I have two OTB cats designed in the 60's which have three beams which helps bow stiffness and forestay stability. Also larger cats often have three beams. The Alinghi approach with diagonal strengthening is interesting. We've been gluing beams in A's since the eighties and some recent designs have beams integrated with hulls. There must be plenty of ways yet to be implemented for extra stiffness. I tend to disagree that you can overdo it, cost and weight notwithstanding.

Cheers