From Secret Twitter August 31st.
Explain the Haymow Overhand Shuffle Run-up (2x+1, x-1, x, 1, 2x) and thus openly set-up 5 cards.
Since the shuffling procedure is a set sequence, 25 cards can be stacked-culled.
As a bonus, the order and position of the bottom 27 cards are not disturbed.
(See Dai Vernon’s «Poker Demonstration»)
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