You're both right, I think. Only guys with a good enough dribble will execute it, I believe, but in order to do it, you need to do what ruffryder8 said (more or less; I'm not sure what the actual "shape" you "draw" is but you'll get it down with practice). I can do it with JKidd and Kittles, but, for example, haven't been able to do it with Kmart.