The nice thing with the kit is that it comes with the drill attachment. Keep in mind, sanding will take the UV coating off of the lights, and they will re-yellow quicker, unless you clear-coat them.
I've used Meguiar's Plast-X with some success on my 9 year old headlights. Try some Plast-X with a terry cloth towel for some 'bite', then buff it off with a microfiber. You'll be surprised what it will do...
Megiuar's video on the headlight restoration kit...
http://www.youtube.com/watch?v=Zw5KSum28dc
I've used Meguiar's Plast-X with some success on my 9 year old headlights. Try some Plast-X with a terry cloth towel for some 'bite', then buff it off with a microfiber. You'll be surprised what it will do...
Megiuar's video on the headlight restoration kit...
http://www.youtube.com/watch?v=Zw5KSum28dc