last night... well, technically this morning... i took the plunge and started the weathering.
the weathering is airbrushed, using primarily createx "transparent sand" airbrush paint. i sprayed it on, and sanded most off with 400 grit paper. then sprayed it again, sanded again, etc... since the paint is translucent, the layering builds up nicely over time.
at one point i put a layer of light brown in there too, but i ended up sanding almost all of it off, since it was too muddy looking for me.
this weekend i'll be hitting more of the suit. i don't know if i'll get it all done or not, but there's a good chance i might.