I've seen people do that but haven't tried it yet. I just use a regular brush and sort of fan out the bristles and gently dab at the figure. I'm working on an Alley Viper in the same scheme as my Cobra Troopers so if I can find a sponge I'll try it and let you know how it goes.
Thanks man. I've been really trying my hand at doing digital camo lately and I'm glad you think it turned out well. I've always been into the camo Joes so he was particularly fun to do. Thanks again.