Using a random orbital is easy. Just go read up on autopia.org on how to use it. It's pretty foolproof and you have to use it correctly to get some effect. If you use it by moving around in random directions and stuff, nothing happens.
As I said, if your paint is clean and your pad is clean, then not really. That's why I also apply wax in a circular motion. Washing in a straight motion though, front to back and top to bottom. Never left and right because horizontal swirls are more noticeable than vertical ones.
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