Hi, I recently used a turtle wax product with many stages of sanding and a clear coat pen to repair some key marks. After sanding as instructed, I applied a paint restorer that came with the kit and it only removed some of the sanding marks. I found that I can remove a bit of the marks with my fingernail, but I don't want to scratch the paint. So I went out and bought a cheapo turtle wax orbital and some polisher that is supposed to remove the defects. Any words of advice or things to try?