The bottom rubber ( 2 in flap ) on my off door slide destroys itself when the flap comes in on top of the slide rollers.It only took a year for us and the rubber was torn at the roller locations to a point that you could see the sun shining in.I just replaced the rubber and don't want it to happen again.Checked under the rubber of a new 2014 Landmark and now they have a piece of metal sort of over the rollers but can't see how this would work.Has anyone had similar experiences with this slide rubber?