Card counting charts

We all know that the higher the True Count when using a Blackjack card counting strategy, the higher the advantage. Genrally, the edge moves to the player at a True Count of +1. The below chart displays the advantage (expected value) for each True Count from -25 to +25. (Sim specifics: HiLo strategy, Full set of card counting indexes, Flooring, 6Decks, S17, DAS, LS, 5/6, 25 billion rounds.)

We can see that the edge tends to level off at low True Counts.

The above chart looks fairly linear. But let us look more closely at how much gain exists as the count increases. The chart below displays the increase in EV at each TC. You can ignore the extreme TCs as they are rare and often involve strange card subsets. It is known that Blackjack is not linear. The chart below indicates that the advantage tends to increase by about .5% at each card count. But, the increase tends to accelerate substantially as the count increases.

The two charts posted assumed a full set of Blackjack card counting indexes. Suppose we use no indexes at all. I ran another 25 billion rounds and the charts are very different. With full indexes, the advantage gain per TC is larger at positive TCs. With no indexes, the gain per TC reduces as the TC increases. The below charts are the same as the previous charts; only they chart both full card counting indexes and no indexes.

What about the Illustrious 18 and Fab 4? These are the most useful card counting indexes. I ran another 25 billion rounds. These charts include the Ill18 & Fab4 Advantage by TC and Gain by TC:

All these charts displayed advantages by TC. But if you want to look at the actual value of an index set; you need to bring True Count frequencies into the equation since the larger the magnitude...

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