Thanks for the response Nick, I have the older model PC 7424. I think a smaller pad would help on these tighter areas. I've read that I need to change the counterweight as I would change pad size, do you have any solutions for this?
On to today's update! I realized while disassembling and preparing the rear and passenger's side that I never showed how I removed the rear arch stone protection. The key to this was MILD heat with a good plastic scraper. In the pics below you'll see the process. I used my wife's strangely shaped hair dryer to heat the area while simultaneously using the plastic scraper to peel the old broken film off. It was best to take it in small strips instead of all at once. In my case, the film came off as basically a brownish "glitter". You're left with an adhesive area shaped exactly the same as the original sticker. I soaked that with standard "goo gone" and let it sit for about 2 minutes. Then, use the plastic scraper to peel sections of the adhesive off. Once you've gone over it once, reapply the goo gone and repeat until 95% of the adhesive is gone. I was able to use moderate pressure without damaging the paint. When done, I used a goo gone dampened paper towel to gently remove the remainder of the adhesive. Then, the area was cleaned with soap and water. Lastly, I used a clay bar to remove any residue and bonded contaminants. Voila! Removed!
Click the pics to see them in full size/resolution