How do you know if you need to wetsand your headlight lens? I get asked this question all the time. The answer is to look very closely at the surface of the lens, are there tiny cracks or scratches? If there is you need to "wetsand" your headlight.
Wetsanding is really no big deal. The Crystalenz Headlight Resotration kit comes complete with the proper grit sandpaper and instructions.