Me thinks I have our headlight solution !!! I bought some 1500 & 2000 grit sandpaper, I started w/ the 1500 and wet sanded the lens til the lens was a uniform milky color, I then did the same w/ the 2000, I then dried the lens's and applied Meguiars " PlastX" use a liberal amount and rub. I did this approx. 5 minutes per lens, total time was about 20 min. and they look brand new. Big difference at night too. Its been a week & they still look & perform well.