OK, so here is the video demo that I promised. You can find the background for this post in my previous post. I just learned this last week at NCSW, with Leonard Ragouzeos, so I am a real beginner here. I would send you to one or Leonard's workshops, but he does not teach on any regular basis. You can beg him if you like, but meanwhile, look at this video and give it a try.
Have fun. Will I be teaching this in a workshop? Maybe. Let me get my own thing going with it first. I am teaching a four day Big Fat Art workshop at Pacific Northwest Art School in September, and will at least demonstrate the techniques there, and let you fool around with it.