Main hatch over entry doors does not go even with the doors when closed. There is an opening ranging from 1" to 1 7/16". Although I'm in a covered slip and no rain can get in, the heat from the cabin can easily escape. Also, I cannot secure the interior with any lock. All of the edges of the non-mating surfaces appear to be 'factory'. Am I missing something? Right now I'm stuffing the opening with rags to keep the fall temperatures at bay. Trying to find a pool noodle to cut down. Any wisdom out there? Oh, by the way, it's on an '83 3607Aft Cabin. Thanks for the education. Ed OK, how do I post pick of this?