Another note, with metallic paint it depends what angle it's put on at to the final finish (i.e. if you sprayed the side of the car and then did the door separately but the door was hung at 90 degrees whilst spraying it would have a different effect). So (phew) if you put the swatches up against the flap at the wrong angle it would've had misleading results (it's because if the angles of the metal and what it's reflecting).