I have had EXPEL in my Miata for about 3 years, works great. I just bought a Caddy CTS V-Sport and received an EXPEL quote and 3M quote. My installer said 3M is now as good as Expel. If so, the main difference is 3M is a well capitalized company vs. Expel. A 10 year warranty may not mean...
I used Griots orange I believe 6" pads. The case is a Mazda 3 colored mica red. I can't take pics right now because my daughter has the car out of state. And note that I now have the flex 150.
Probably stupid question but when you polish to remove swirls how hard do you push down on the orbital? I just bought a Flex 150 at Detail Fest and have not had much success previously with a porter cable.