Truscale Stormraven [4]

I've got the Chaos Black undercoat completed and I'm ready to start on the main hull colors. I'm going to spray the hull with a darker gun metal, then try the salt weathering technique. Hopefully when I spray the lighter Chainmail over the Boltgun, and remove the salt, I should get some chipping in the surface coat around high-wear areas. Although I don't think I want to show rusting, as I imagine Grey Knights equipment is well maintained, and wouldn't get to that state of disrepair.