I used the PC at speed 5 for the Swirl & Haze remover. same speed with the machine polish.
I used the nanoskin auto scrub and it is very impressive. I got the version before they created a "fine" and "regular" So I'm not sure which it would fall in.
I can tell you make sure you have plenty of detail spray on hand when you use the auto scrub. I went threw a bottle a car. probably used it a speed 3 most of the time.
Flex fuel is this juice you drink, you put on a tank top and then you flexxx - matacuero