The cockpit is large enough for a tall person to stretch out easily and, with the tiller hinged up out of the way, will seat several people comfortably. (A few boats have been converted to wheel steering.) The two 1-inch-diameter cockpit drains are adequate for rain but a little slow for a boarding wave. Some owners have enlarged them or added new ones.
Overall, owners seem pleased with the sailing performance of the Grampian 30. It's stiff and dry, even the centerboard version, but given its high ballast ratio (.45), it's not hard to see why. It won't outpace or outpoint more modern designs, but it balances well and, on a close reach in moderate conditions, will track for hours with no one at the helm.