As all the guys who actually sail/ed F18s will tell you. The performance of each boat is fairly distinct, but the so close that it is scary. I guess 180 kg will help do that.

As for the wave piercing T..... I prefer it the way it is. Don't think the wave piercing bows will add much too the boat, but may take away from the boyancy in the bows. I would rather send a T hard down wind then any other boat. The big T is in a totally different league to the F18s.