I think the effect works well in practise and achieves good responses. I have watched Dynamo perform it in a close up environment in Dubai, and the reactions were fantastic. In terms of those who all too often expose on youtube, there is certainly a gulf between learning from them and polished professionals. Whilst in my opinion the effect if thought about briefly can be easily deconstructed, Wayne's teaching on this download is first class (as it generally always is), and variations are offered. Nice and direct, I like it!