Mark,

I think there are a few additional rules in addition to only having a rating of 104. Also it is not really clear which handicap system they use to calculate this rating. It is not the NEW SCHRS system as that places a few boats out of the class I believe.

From memory the listing was :

Cirrus Evolution
Swell Spitfire
FX-extreme (Is not the same as FX-one)
Mattia Esse (is really not too competitive)

And they claim the AHPC Viper F16 as a F104 as well.

Wouter