I have been using a Random Orbit Car Polisher and have been having great results! I don't want to pay the shop every single time I want my ball polished, nor do I have my own spinner. I tried it by hand, and it did make the ball a little shiny. I then tried it with the car polisher and it came out really shiny! I used a new polishing cover, so only Beans Sauce is on it and nothing else. Because it rotates in a random circular motion instead of a perfect circle, I think that it covers the balls surface really efficiently and evenly.