I can highly recommend the JP 10'8"

My mate is stoked with his 9'3"
I have tried this board with a rig in both flat and small wave conditions with a 4.5 Zone.
It tracks up wind surprisingly well for a thruster

I think that having Werner Gingler (JP Windsurf board shaper) design these has helped their windsurfing ability.
Jason seems to think so!
http://www.jp-australia.com/2010/index.php?id=474