This is one of the more clever ideas for creating secret markers on a deck of cards for locating any
card, anywhere. When you do the locating 'action' (too simplistic to even be considered a 'move'
really) care must be taken in not taking too long or giving the impression you're looking and
fiddling with the outside edge, since that's exactly what you're doing. I recommend choosing a
spectator who's in it for the fun (like in the video) and not with the intention of debunking. As
far as being examined I won't go any farther than they shuffling the cards. The secret pretty easy
to see with a slightest disruption of the perfectly squared deck, and we all know how rarely lay
people hold decks squarely. With that being said it's a brilliant deck and I recommend it for any
card enthusiast. When the deck is held squarely the method is well hidden. There's nothing to see on
the outside edges and the top is so busy it's not discernible. Just the slightest shift and the
markings pop out brightly and clearly.