Hakan, you are right, what ever the class decides everybody else has to live with. But then again the management of the class has to decide what's worth having a ballot about, and I trust them to make the right decision about that - no worries.
I guess the key point I was trying to make is that over an average of different conditions you are as well of with your streight boards as with banana boards. And you should now how marginal these small differences are. If you still have your old Marström you don't have canted hulls and your daggerboards go vertical through your hulls while almost every other A-Cat builder has had canted hulls and angled daggerboards the last 10 years - and still a Marström is as competetive as any other A-Cat.
Don't forget that the main reason for a boat going fast or slow is still the sailor. Glenn Ashby, Lars Guck or Pete Melvin will probably come and beat us all again at the next worlds with a stock boat with no modification :-)
Here are some pictures of the Nikita at the Europeans - I couldn't find any ones showing the boards better. Maybe the hull shape is part of the success as well...