What's amazing here is that several years ago I told how I was invited to a demonstration at a Strip casino where a dealer could target four adjacent slots on a roulette wheel.... AND NO ONE BELIEVED ME. Yet, here without any eyewitness account you are believing that someone who claims to be a dealer can shuffle cards into a clump of tens and preserves the clump even after at least one cut... after the shuffle is completed and the player inserts the cut card.