The Martingale Betting System
Another method for determining the probability of a higher than normal percentage of high point cards being dealt (which is an edge to the player) is known as cluster counting, or shuffle tracking.
This betting system, which was invented over 200 years ago, instructs the player to double his bet each time he loses, on the assumption that he will eventually win and show a profit from the initial wager. With a beginning wager of $5.00 you would double your wager with each loss. IE: $5, $10, $20, $40 $80, etc.
After a win your wager would drop back to $5.00. All wagers are recovered when you win a hand. Casinos have table limits to eliminate the effectiveness of this system.
After a long losing streak you will eventually hit the table maximum, thus defeating the purpose of this system. Plus, a considerable amount of bankroll is needed to make this system work, and the payoffs simply aren't worth it.
If you started with a $5 dollar wager and lost your first four wagers and won your fifth, (without double downs or splitting your cards) you would be a measly 5 dollars ahead.
This is simply not worth it, and if you are losing multiple hands in a row it is time to leave the table, not double your wagers.
Also, losing double downs or splits can deplete your bankroll in a big hurry.