Open Archive 7

My Detroit Flex System

Posted by MathDope on 10 March 2001, at 10:54 a.m.

My methods are very simple. You simply compare the HiLo running count to the number of reaming Aces. Insure if it is greater than or equal.

Example: At the start, the running count is +3, and the dealer exposes an Ace and call for Insurance. No other Ace has been played. So there are 3 unplayed Aces. The RC is +3, so you Insure.

If the RC had been +2, you would not insure. Not that ordinary HiLo players would insure if the RC was +2; here we do not do it because we know that the pack is Ace rich, and our count reflects a richness of Aces and not tens.

Mathematically, what we are doing is using an unbalanced count, obtained by neutralizing the Ace. (So 2 thru 5 are counted +1; 10s are -1; and Ace,7,89 are 0). This unbalanced count pivots at the Insurance Index, so we can make this decision without any true count conversions.

Bert Normel recommended this count in his "Flex" systems. My adoption is a simplification of his count, and I call mine the "Detroit Flex".

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