I've got a Super Sport, but I opted to do a two-piece door with a plexi top and fiberglass lower skin. Unfortunately the manual only describes the one-piece type. My main question regards the joint between fiberglass and plastic. The 'glass has a joggle to accept the plexi and even has what appears to be marks for holes. If I line the fiberglass up with the door frame it looks like this line of holes will end up slightly above the horizontal crosspiece in the door frame. Is this correct? Should the glass or plexi attach in some way to the cross piece? Any advice or pics would be much appreciated.