go to the junk yard and get a panel and shoot it and then work on the blend your shooting till you get the color match to your liking. better to practice a bit on a piece that doesnt matter, than the actual pieces. id get a spare nosepiece and experiment with that a bit until you find what is going to work for you. its a better way than trying to spread out the mismatch, which most people can spot with a 3 second look at the car.