I too have held off on these, and I too am not completely satisfied with my headlight restoration attempts. They look *much* better than before, but till I get them as near to perfect as I can, I'm not gonna get the protectors. I've used a PlastX polishing kit and a 3M polishing kit each with their own downsides. Now an "expert" I met told me to attack it with the very finest steel wool I can find. Eventually I'll get them back up to snuff and install these, its on the list.