When you have the edge with card counting you know when you have the edge based on the change in the composition of the decks and therefore you'll know when it's the right time to bet more. So unlike betting progressions that are based on whether you win or lose the previous hands, card counting is based on the mix of cards that were played on previous hands. If more small value cards were played in previous rounds, there are more big value cards left in the unplayed cards and the edge shifts from dealer to player. This would be the best time to bet more.
But I'm realist. Not a whole lot of average blackjack players have the time or mental concentration during play that is required to master one of the popular point count card counting systems. These are readily available in blackjack books.


