Why count the cards? just mark all the blacks (or reds) and when a card is selected you will now what color it is by if it is marked or not. on bicycles I just color in the center circle with the matching back color sharpie. I mark the black cards in all my decks just in case I ever want to perform tapalack.

The Epitome Location by Harry Lorayne PDF.

Product Details
The Epitome Location is a treatise on one of Harry Lorayne's most versatile card creations. This principle allows you to identify a card that has been selected from the deck under any conditions. It provides a fantastic out to use with challenging spectators and makes for a powerful magician fooler.



The Epitome Location has never before been offered as a PDF download. The Conjuring Arts Research Center is proud to have partnered up with Harry Lorayne to be the exclusive retailer of this exciting, new format.

http://shop.conjuringarts.org/store/pc/v......#details

Best,

Mark