i had some here for sale
in 20cm and 18 cm with 0 degree
mini power box ca. 9 cm + 8 mm
the boxes in the board should be angular
or you must change the fins
for more info plaese contact me www.b1-kiteboarding.com
we had build different speeboards over the last 3 years
actually i have a kitespeedboard available for sale
exactly with this shape
i could finish this year in 5. position
in the kitespeed event from fuerteventura 2008