Hi TooFuzzy, Th example of the Arabs(doubling the bet) is not an effective means. The 1 dollar profit is not worth the trouble as you showed. One should start with 2 dollars and then square the bet: 2,4,16,256... ad infinitum. That's the winning way, but if of course one would run out of money much sooner. This sounds OFF TOPIC but it is ON TOPIC. The exponential-like gain of this example is the power underlying the AIM WAY. But we all know that already. Conrad