Anybody heard of " Dry Flake"? Different process...same result? http://www.rodandcustommagazine.com/techarticles/0604rc_metalflake_paint/index.html
I have never tried the old skool flake gun but I have always shot my flake wet with a old binks#7 siphon gun with a few bolts tossed in to keep the flake mixed up.
What he said , and don't forget to ground the BODY to a puddle in the floor, eliminates static electricity from standing all the flakes on end. All flakes are silver on the inside, when you wet sand the outcasts.