I am newer to using a da, I have griots garage 6" and chemical guys hex logic pads. I am having a hard time getting the embedded dirt from the finish. I think this car sat under a tree for years prior to getting it. I have clayed it, compounded, polished just the hood so far. I started on the bumper and front clip but it's not coming out. Pictures are hard to see but perhaps you will be able to help me.mequiars UC, meguairs UP, and mequiars UW.