I finally had a decent enough day to clean my car since last fall. I decided to strip all the Zaino off (if there was any left), and give S100 a try. I washed with Dawn first, then used some regular Zaino car wash I had left over to get it as slick as possible. Then I used the S100 paint cleaner. Then S100 itself. Im impressed with how easy S100 goes on and off. Pay off is much quicker then Zaino I forgot to take "before" pictures! Damn... cause this bitch was dirty after this miserable Chicago winter.