Ive tried all the techniques and polishes and such and gave up.

Right now I'm getting the best results by using anywhere from 400 to 800 grit wetsanding, followed by 2-3 coats of cheap nason(dupont) clear I had laying around. Ive done multiple dodge ram and ford mustang headlights and even the pair on my parents caravan.

Ill try to find the before and after shots.