here is what i start with : spiderwebs , swirlmarks , light holograms. a 70%-75% improvement after 2 steps. car was wash with onr and clayed. i use pc with meguiar`s 105 on 5.5 orange pad and meguiar`s 205 on sonus white polish pad, protection opti-seal. on inside i use optimum leather protectant on vinyl and leather, wheels got optimum car wax and endurance tire gel. corrected, or at least better than what i start with nice interior!