I'm going to me applying my can of Nite Shades to my center turn signals and perhaps a little bit to my tail lights, but I'm afraid to mess up. I've done a bit of spray painting before but nothing accurate. Does anyone have any tips on applying the Nite Shades evenly? Number of coats? How dark is too dark? I was dig'n the shade of HKS's orange focus's tail lights and was wondering if anyone new the amount used too.