Hey, so my headlights have some scratches and are starting to look yellow. I purchased the 3m Headlight restoration kit. You have to sand the headlight and then polish them to look like new. My question is has anybody tried this? i dont want to damage the headlights by sanding them down. You think its a good idea? I put a link of the product below. Theres also a video on youtube of the product. I put a link up of that video too.