Raw - If You go up north I promise it is worth trying! It easyer than windsurfing. The rig feals real light and the friction almost goes doawn to zero.
This sport is even more exiting ttan windsurfing. Today we had a fantastic day south of Stockholm with perfect ice, sun, 15 m/s and topspeed between 34 and 42 knots. It could be dangerous but You could minmize the risks looking like a hockey-player.