Well long story short, I got a foam gun over the weekend and really wanted to try it out but, the dwindling day light and the need to do other things tonight put me in a 'hurry up and get it done' mode while washing the truck...... Result was a nice scratch on the bedside when I was doing a sheet rinse(drug the hose across the bedside ).... Which resulted in getting out the Polisher and fixing said scratch, which was more transfer than scratch thankfully, so I wound up spending more time than if I had just worked at a comfortable pace and done it right to begin with ..... I'm sure I'm not the only one to learn this lesson the hard way but, maybe I'll save someone else some trouble!!!