I have been reading and trying to understand Knock-Out Blackjack by Dr. Vancura and Ken Fuchs.
On page 48, (Chapter 3), while still using the gumball analogy, they state with an IRC equal to 0 the expectation is 0 when the running count reaches +4 (pivot point). The "key count" is reached when the running count is at +5. This makes total sense and is empirically demonstrable using objects such as gumballs, coins, marbles, cards, etc.
However, the table on page 75 (Chapter 5) states that starting with an IRC of 0 the key count is reached at a running count of +2. I can't make this observation, and the theory is apparently eluding me. It appears to me that there are still two more lower cards in a single deck (when I reach a count of +2) than high cards.
Where am I going wrong? I can't seem to find the answers in the text.
Thanks,
Cotton Bob