I had seen all of the very positive reviews for this technique, and thought I should buy it. It is
a great technique, but, in my opinion, it is poorly explained. He just says it is knack--and you
just have to practice it. I didn't pay just to hear him say that. It is also expensive. For what you
get, it's just too much!! The ONLY reason I gave it more than 1 star is because it is a good effect
and I have gotten 1 pretty good reaction with it. (I have only performed it once)