As with any clamshell item, the hood has a small tolerance when it is closed, between the shell and the door. If the door is halfway open then the flexing of the clamshell hood might scrape the paint or dent the door as ithe clamshell is closed. So to eliminate this either open the doors fully or close them so the flexing won't hit the paint. I have always closed the doors on my 75 Triumph Spitfire because of the clamshell hood. Skip.. Not worried about no stinking clamshell...:lol: :lol: :lol: