I have a early 31' 2 window deluxe. On the passenger side I have a tried a door frame peep mirror and a hinge mirror and neither one will correctly focus on the vehicles behind me. Some say this is due to the slight outward bow between the doors. Is this true? I've adjusted the mirrors every which way with no luck. I haven't tried a wind wing mirror yet but I've heard they vibrate too much to be of any value. I realize this sounds ridiculous but has anyone had a similar experience ,but better yet, a solution. Thank you.