Question for Jerry (and any others that would like to add thoughts/ideas)-- Do you think the idea of improving the cockpit drain on a 1979 M17 in the manner described below has merit? Install a 1 1/2" plastic through hull (vertically) at aft end of cockpit, just above OEM drain, and install another plastic 1 1/2" through hull in transom (slightly below first through hull installed) and connect the two through hulls with reinforced hose. A one way Whale valve would be installed in middle of hose run. This valve is to stop water from backing up into cockpit. The transom through hull would be above water line, thus removing the need for the below water line OEM through hull. I am considering one through in aft-center of cockpit, as this is the area that has a low spot for water to be removed and where OEM drain is located. Two through hulls may be installed (one at each aft corner of cockpit) for twice the volume of water removal. With this installation, some water would not be removed, as the low spot is at center of aft cockpit. Thoughts?