A round end up with a big card more often, so the running count changes to negative more often after the first round. This is confirmed by computer simulation.
Did not go further study, so have no idea what happen on the further hands.
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Some studies on continue shuffle machine, claim that CSM can low down the house edge. Their simulation is based on the first round of a shoe game conditions, but not a continue shuffling conditions. I wonder their results are based on the wrong assumption.
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