Keep in mind - I am not a detailer, but I consider myself fairly capable with my Porter Cable buffer on scratches. However, I was tackling a deep scratch around the left/middle section on my driver door today. I filled in the scratch 5 days ago with clear and built it up with intentions of wet sanding it down. I then read and watched videos on what to do before attempting the act. Since the scratch was only 1" long, I decided to use a rubber eraser instead of a standard sanding block which I think led to my problem do to increased pressure capability. I started with 1250 grit and finished with 2500 sandpaper. In no time, I had rubbed through my clear in a spot the size of a nickel! I am totally sick to my stomach as my car is 6 months old AND it is Palladium Silver Metallic which is probably the hardest color to match. Let alone I will probably be $500 poorer when it gets repaired. I am having thoughts on how bad it will match right now.