I used the black box and I wasn't to happy the first go around. Second go around I used the clay bar first to clean the clear up a little then did the step by step with the black stuff. Wow, what a finish. I did buff the last coat also which I think helped a little. I like the tech wax for a quick shine but I think a couple times a season the black box will show its face to clean things up a little.

 

I like the Mother's products, and certain 3M stuff