I didn't mention idle-up or tail-rotor compensation for this phase of training because the helicopter is basically in a hover. Hermes Blue Crocodile Birkin. Begin a Hindu shuffle, but pull off a block of cards from the bottom of the deck rather than the top on the first shuffle action. To prevent the nose from swinging, leave the gyro sensitivity at that required for normal flight. Hermes Blue Crocodile Birkin. Sfmry After the shuffle After each riffle shuffle you will want to square the cards. The method taught here is based on an idea of the well-known American card expert Frederick Braue, an authority in this field in the 1940s and 1950s. Hermes Blue Crocodile Birkin. Seeing that this riffle is honest they are lead to believe that the first riffle, which they missed, was too.