Hi All and thanks for all the comments and photos.
I think in terms of the board design I'm hoping that its a windsurfer that you can sup rather than vice versa, not a light wind waveboard that you'd rig big and try to plane - more a platform to get out to the waves and have fun with a 4-5m sail and an uphaul rope - so it needs to be more wave riding oriented than planing.
I've been using a tabou sup to sail with and its ok but you really need front footstraps for getting out over the whitewater and for gripping the board if you're pumping onto a wave.
I read somewhere that Scotty had a hand in the design and there were some movies of him sailing it in waves, it got a good writeup from planchemag:
http://www.star-board.com/wp/?p=1842Still waiting to see if the distributor can get hold of one for me!!