Here is the gear to go over 50 knts:
www.mistral-boards.com/index.php/speed.html
www.mistral-boards.com/index.php/speed.html
ailerongasoil.free.fr/
...if your name is Anders Bringdal 
Channel and wind sold separately.
Obviously the mistral production speed boards a performing and producing awesome speeds over there, which is a reflection on the fantastic design and sailor.
But geez it would be interesting to see what the other production speed boards would do if they were being sailed over there by a quality sailor.. probably set awesome speeds also!
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Hey Sausage have another kid that will stop all the thinking lol. Back to the subject youd reckon Bjorn would be on isonic speeds.
Jurjen's board that you see on the picture is a custom 40cm. It has a more pintail design that works verry wel on extreme broad courses. It only looks like a production board.
