I bought a used 96 miata last september. I wanted something to keep me occupied since I had run out of projects. My youngest son had past away in Dec 06. My wife thought a project car would help pass time. The Miata was owned by a 63 yr old divorcee. The car has 52,000 miles on it. Triple black with outstanding interior. The outside looks great except for the fact the lady must have used wet paper towels to try cleaning bird droppings off it. There are lots of water spots and fine scratches that won't polish out. I have used scratch out and some clear coat rubbing compound on the hood and trunk. I have gotten a lot of the marks out, but many still remain. The spots appear to be etched into the paint. I am pretty anal about my cars and hate the spots. I have debated on a PC 7424 thinking this will be the only way to clean the paint . I don't mind the labor of doing it by hand if there is a way to do so with the correct product. What do you folks would recommend for the task? Thanks for your time and suggestions.