Whenever I play Blackjack or Poker, I make sure that I can maintain my power curve before I hit the tables. Let's look at these power curves you must stay above. In the game of Blackjack a professional level player maintains a fragile edge over the casino. It takes a lot of work to maintain your edge. You need to possess all your wits and skill.
Poker player maintains a higher edge over table opponents.
In poker, you tend to see your opponents sliding off the power curve because of the long sessions. I personally get a warm and fuzzy feeling whenever I'm up against a poker player who's slipped behind the power-curve. They are a continual source of income. B. You loose your table image. Players immediately pick up on any of your weaknesses.