I have always used a gloss undercoat before apply a wash. This time, I am trying something new and doing an artists oil wash. I am using Testor's Model Master enamels for the main color of my M1A1 Abrams.
Question is: Does it HAVE to be a Gloss coat or can it be a dull coat? Is the gloss coat more protective, than say, a matte finish over the main color?