i have 2 different 'marks'. one goes across the width (door to door) and is about 6" long in the middle. It appears to be where the top rubs on something like a support bar. the other mark i started to see is a 6" running length wise - bumper to bumper. when i 1st saw this, i thought it was caused by something like a low branch or a person with a dull knife. what i noticed was when the top is going down, this mark is a fold mark. i've tried to 'retrain' my top so it doesn't fold there but it's hard to keep your finger on the button and reach back unless you have 2 people.