Very nice work. Always amazed how some people get black cars, then let them look like that after a short while. Complete turnaround. How'd you like the Opti-Eraser? Thinking about a low-cost clay alternative, but don't really want to spring for the Speedy Prep towels since I only do my family's cars. Seems like some tend to use too much pressure when using things like the Eraser, which lends to marring, while others are happy with them