I hate those damn swirl marks left behind after washing my truck. What causes them, and how do you get rid of them, and can they be prevented fromalways coming back? I waxed my truck by hand, and it looked great until the sun shined on it.....swirl marks galore. What did I do wrong? I could understand if I used a high speed buffer, but I waxed it by hand. I used Mothers Carnuba wax. What is the best way to wax...by hand or machine, and if machine, what brand and model of macine?