I did a wet sand approach on my headlights and they came out better than this kit. It took a bit longer with the manual hand approach but the outcome was well worth it. I machine polished the last set which was the compound. My steps that I followed:

1.) Wet sand 600 grit by hand
2.) Wet sand 800 grit by hand
3.) Wet sand 1000 grit by hand
4.) Wets sand 1500 grit by hand
5.) Wet sand 2000 grit by hand
6.) Machine compound for shine and brilliance
7.) Coat with synthetic wax/sealer for UV protection

You'll love the new headlight look