I noticed that several of the boats in the top 10 at the recent European Championships had curved boards. From the pictures i was able to see that 1st, 3rd, 5th, 7th all had curved boards ( i think). Almost every race was sailed in under 10 knots, which i think would favor the straight boards.
I think most would agree that the skipper, rig and sail are the most important factors. It is interesting to see another wave of development in the class beginning. There hasn't been much change since 2004 with the A2 and the Flyer 2.
The class is very appealing, I want to make sure i'm keeping up with the design trends in case i decide to purchase a boat in the near future.