This effect is fun to learn and to show. The DVD has great instructions for both a simple and more advanced handling.
What I really appreciate about Sankey is that he explains the psychological underpinnings of the effect to help make it more convincing. He even details how to hold the washers you use, to make it look more fair.
If you're looking for a fun effect that you can use after a few days of practice, and continue to grow with, I'd suggest this one.
Date Added: 05/20/2006 by rebecca gibson
This trick is great! Although, if you watch the DEMO carefully, you can figure this trick out. It is easy, but you will need to be familiar with the standard switches and very little crowd management skills.