I couldn't believe the hype about a stack you could learn in five minutes, but it really is true.
Watch this video once and you will have the concept down pat. You really will be able to have a
spectator name any number and you can name the card at that number almost instantly. You can spread
the deck out and the spectator will never notice any repeating pattern or anything like that.
However, it must be mentioned that you are only memorizing half the deck. By moving the top card
to the bottom your even-numbered stack suddenly becomes odd numbered and you can still name the card
at any number in the deck, but you can't just let the spectator name any card and you find it.
The system works when a number is called, and really only then. If a card is called for, you
will have to struggle to figure its spot, and then it may not have one since you are memorizing only
half the cards in the deck. So being fair, you really do have a (mostly) memorized deck routine here
you can use when the situation arises (and they give you a couple of good routines to use with
this), but it's not perfect.
I see this as the best choice for someone wanting to do a
SCAAN (Some Cards At Any Number) routine rather than the ACAAN routine. If you want to have a
memorized option but don't want to spend hours learning the hard ones, you can have this under your
belt in less than 10 minutes and remember it weeks later even after not using it. Setup takes a few
minutes as with any memorized deck, but there really is no discernible pattern. You can know the
position of all the aces with one slight modification they mention too.
If you really want
a memorized deck routine, start here. I really wish this system worked for the entire deck rather
than every other card, but it unfortunately doesn't. It still has great potential though.