I am curious to know more about this technique. I have two small scratches of unknown origin on my hood, (I guess that I did not catch the culprit, cuz they weren't there at last wax job last month) Also today a big Waste Management truck went flying by me to run a yellow light, hit a pothole which dislodged a bunch of dried mud and small stones, which pelted my hood, windshield, etc, causing several new chips. The scratches are less that 2 inches long. Is this a technique I should check out???