My FCA blade weighs in at 1.5 kg over minimum with the only carbon being in the foils. You don't need an all carbon boat to reach minimum, that's a myth.

I don't think the Vipers are necessarily the fastest either. At last years oz nationals the blades were often first to the first mark and passed vipers going downwind. The vipers won because they were sailed very well by two very good teams. Which is what we saw at the global challenge aswell.