Ron, A friend added one to his aft cabin style and it wrks grt, AFTER he installed Lexan gutters along the sides. With out them any little rain dribbled onto the bridge. This prob could have been avoided in the orig installation. He saw the 'gutters' on my pilot house style, as I have them over my doors to the pilothouse. They are unobtrusive as they are clear and only abt 3 inches wide. CCC Patterson, La.