If your moor your boat in water close to centerboard depth, always raise centerboard at rest. I didn't and eventually found a big crack in the hull in front of the centerboard well. Apparently the board got stuck in the bottom at low tide and through wave or wind action as the boat tried to change direction, great starin was put on the hull. It cost me a month out of the water last summer and my insurance company alot of money. I love the boat otherwise.