I'm just finishing up the polishing on my car. I still need to add one more coat of DGPS 3.0. But it has earned my respect. The black paint on my car has never shined as nicely as it does with the product. I was going to glaze the car with PB's Black Hole 1st. But after testing it on a few places on my car. I really didn't see it adding that much to the shine. I have spent over 30 hrs on polishing and swirl removal. So the paint in near 90% perfect. So I guess when you get it polished up that much. The glaze isn't really going to do a whole lot. The area's I did glaze got noticeably slicker but only slightly glossier. I can't wait to see how it looks with 2 coats. Wolfgang DGPS 3.0 is a product I can say, does what it claims. :goodjob