Centerboard vibrating? How so?
Can you describe what happens? When I am out in 15 knot winds, I hear a groaning from the hull when on anything other than a run or broad reach. At least I assume it is coming from the hull - perhaps it could be the cb. Can you see it vibrating? Does it work itself up? If you get no help here, try emailing Hunter: customerservice@huntermarine.com They are quite responsive. Good luck.
