pogostick said:
Have any of you guys heard of the 5 ace counting system? May be too good to be true.
Nobody's posted this so far, but there are two criteria that are used when evaluating systems.
One is playing effiency (PE), which is basically how good of a correlation the count is to the "perfect" count. 0 is the worst (no correlation, and 1 is the best (perfect correlation). Memorizing every single card and every advantage from every possible combination is the only system with a 1.00 PE, and most systems are between 0.50 and 0.70.
The other is betting correlation (BC), which is basically how good of a correlation the count is to your advantage. Again, 0 is the worst and 1 is the best. Most systems have high BC's, 0.85+.
Ace-five (BC = 0.51, PE = 0.05) is inferior to most systems in BOTH categories. Hi-Lo (BC = 0.97, PE = 0.51) is no more complex than ace-five, and Red 7 (BC = 0.98, PE = 0.6) is arguably easier. The bottom line is that there's really no reason to play ace-five.