Thanks Adam i will give that a shot as soon as the weather clears up here a bit.
I have tried to take some pictures but the spots are very hard to see in person and are invisible in pictures. i am sure they were a lot worse before i corrected the paint with the porter cable and thats why they are so hard to see now.
i do have a black line on the backing plate and was pressing hard enough to make it go around slowly but i never put enough pressure to make it not move at all. i am going to take your advise and follow you instructions step by step and post back let you guys know the results.
thanks for the warm welcome everyone.