Wow a turntable, you could really keep going with this stuff.
Wayne I use an oil wash on almost all my builds, some are more part specific and others are an overall, it just depends. I thought black worked best for this one where as if it was a three tone camo I might consider an umber. I don't know, I seem to change my mind as I go sometimes, for example, I was thinking closer to a clean build for this one but then that really isn't realistic. These things for the most part are dirty, dusty, oily, greasy, full of black soot and ash. So I thought I'd dirty it up a bit. I've added a few goodies too.