Hey spookyluke12,
You can definately ride in less than 10 knots, just not downwind. Wait for an onshore day and go for it, provided the sand is hard packed it'll be ok. You should also let the tyres down a bit too to help with traction and point loading. You can do lots of nice big carvy S's to help load the lines and provide a little resistance to the rolling friction of the board.
Snoidberg is right, MBS have adjustable "egg shocks" to increase resistance to turning. Helps ease the speed/death wobbles.
Get into it, it's huge fun!
Good winds,