http://www.kitepower.com.au/catalog/product_17699_Underground_Race_Board_cat_412.htmlThat board is the latest design from Underground who are having great success with it in international races. Its available now.
The fins in this board are the most advanced that I have seen in a production board.
We saw the Cabrinha boardS in Maui and Rhys from KP Qld actually rode them in the very windy conditions. He rated them below the Underground, but above another well know brand that he has ridden. We should be able to release pics of that board soon, but if you go into any of the Kitepower shops you can see pics of all the 2011 products, including the race boards.
The Underground board has been produced to the highest standard, to compete with all the other custom board brands in the international racing scene, and it has Tuttle fin boxes, which are regarded as the strongest in the windsurfing boards.
Tuttle does seem to be the best option, they have a massive base with 2 screws and this also means that owners of boards with these boxes can try a huge variety of windsurf board fins.
Race boards are a bit techy to ride, I had a disaster the first day much to the amusement of the peanut gallery lol's.
They need to be ridden flat and not edged like a TT, so its hard at first to stop old habits. Anyone that has windsurfed or rides a surfboard seems to get along with them fine from the get go.