This is a routine Allan Ackerman developed in the early 1970s where he tried to achieve the cards across effect with as little motion as possible. He also added a visual card vanish. Later Paul Harris took this routine and turned it into his famous Sleeper routine.
A spectator picks a card. A second spectator cuts off a small portion of the deck, counts the cards, and puts the counted cards in a safe place. The performer then attempts to magically add as many cards to the second spectator's pack as the value of the card the first spectator chose.
runtime: 6min 43s