I have an 2010 M7 with 1600 miles and I'm just starting to notice the track is fraying pretty bad on the edges. Anyways I know this is usually just normal, but my question is how to take care of the frays. I've heard of people burning them off but some people say not to do that because it could burn a hole in your track. Anyways what's the best way to go about taking care of the frays on the track?