I think this was just recently discussed.....do final sand with 1500-2000 grit then hit it with a clear coat. I dont know if anyone has actuall dont this yet but I think this is the cure for the Dull apperance after the final wet sanding. This is the method I'm going to use. first I'm going to let the paint "cure" for a few days while I drive around, this is before I even get to the final wetsand. Then I'm going to finish sanding and do the Tremclad Clear on my final sand.

attached is a pic of the car with the 6th coat.