Simon, Wouter,
You are correct, the F104 will not grow out of France and the class consists out of cats with the same rating, but is not at all a formula class. Differences in mast lenght, lenght and width of the boats and so on prevents a fair race...
Also the class is not developped at all...
But still, better to have one class in Europe, then having 2 aiming for the same goal.