neone ever heard of Instant Rust also??? comes in a set of two bottles. One's a bottle of tiny iron particles hung in a solution, and the other is some sort of lite acid. just brush on the instant iron, wait a day or so for it to dry, then apply the solvent. you can apply thesolvent several times to build up and increase the amount of rust. I've used it on several occasions and it worked great.
bob collignon used it on his sherman in FSM a couple years ago. if you dont like the color of the rust, u can use a wash to darken it, or just apply more solvent to brighten it. even though its very useful, I also use other methods to create rust. sometimes, the rust needs to be lighter, and a bit differnent in color.
so to everyne else who had tricks up their sleeves to share, thanks!! they'll really help add to the tricks I know now.