When I watched the demo for this effect I had several ideas for how it could work. I was completely
wrong on all accounts. Using a very old concept (and one I haven't seen used in many other effects
of the past decade) you are able to do exactly what you see in the demo. You can allow the spectator
to shuffle their deck as much as they'd like. They can examine the cards before, during, and after
the effect and probably won't find anything (I say "probably" because a thorough examination will
expose part of it even though they won't necessarily understand what they're seeing).
With
the DVD you receive two normal decks of cards that you will use after you do the initial one-time
set up. It will take you about ten minutes to set this up and then you can use these decks to
perform the miracles again and again. Wayne says he's left prepared decks aside for years and come
back to find them still able to work, so we will see. As I said before, a thorough examination isn't
going to pass but a cursory examination during the effect will probably show them nothing. You will
have a very small bit of memorization to do and a limited number of times you can do this for the
same spectator, but in the end it seems worth it.