This is a late response but I left my 210 docked during heavy, heavy rains for 2 days with no cover. After the rain stopped, the water was coming out of the bilge. All of the strage lockers were full and a quarter of the large locker up front was full of water. I turned on the engine and started up the bilge to keep the batteries from draining. I then decided to see if the boat would move and self drain the transom area. The boat was sluggish but got up to speed. As the bow came up, more water came out of the bilge and self drained. I was happy. Its a tough boat.