ok, just to save you a lot of time, effort and money. go to bunnings and get 3 or 4 halogen spotlights. you need at least one fluro tube and a couple of halogens. set them up at all different angles and as you are spraying, get your head down so you can see the spotlight in the sheen coming off the gun, the three different types of light (sunlight, fluro tube and halogen) shine a different type of light and will help show how the metallic is sitting, so you can go back over spots that are not right. its a lot harder than starting with an oche or black base, but youve done it now, and IMO this would be the easiest way.