I second what navajake said. I use 3M products, including rubbing compound. The variable speed polisher is key, especially for tough scratches. I was a little frustrated when I saw that a lot of scratches weren't coming out after the variable speed polishing. I started to try wetsanding starting with a 2000 grit sandpaper and going very slow. I followed that up with the rubbing compound, polish, wax and the Finesse-It II and I could not believe what a difference. The variable speed polisher is an investment, but they are not too expensive. I use mine all the time. It is amazing how many times the wakeboards hit the side of the boat, no matter how fast I jump from the drivers seat to help out. Good Luck!