There really isn't a correct way - Start with your main color - say we're doin a white to yellow to red fade, Shoot your white with a touch up gun - don't worry about getting the white where the yellow or red goes - just shoot the whole flame white. Then pull out your airbrush or dial in your touch up gun nice and tight. fill it with yellow - slightly over reduced and shoot in your yellow from the "breaking" point on the white all the way to the tips of the flames - now fill with red, slightly over reduced and fade in your red from the tips up to where you want them to break. By starting from the tip with the red you will be able to control the "orange" you want and how far up the flame you want it. The only problem with this way is that when you unmask your flames you'll have a white hairline around the whole flame, but thats what pinstriping is for --- Bones!~