But advantage is only part of the story. As overall advantage increases, it is possible to increase our betting unit while maintaining the same risk. That is, if our overall advantage increases, we can bet more at each count even though the advantage at each count is about the same. The following charts will use SCORE instead of advantage. SCORE is a method of measurement that takes into account optimal betting and risk in addition to advantage. For an in-depth description, see Blackjack Attack by Don Schlesinger. For the purposes of this discussion, SCORE directly relates to your hourly win rate.
The chart below shows the SCORE for the same game as the previous chart, — that is, how much we can expect to win at each penetration. In both charts, we see an upward curve. But you can see that the curve in this chart is much more dramatic. The win rate with .5 decks cut off is seven times the win rate with 2.5 decks cut off.
At deep penetrations, a single card of extra penetration can make a significant difference. This importance of this effect is missed by many starting counters.
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© 2009 Norman Wattenberger
