The nor system is a must have...believe or not, alot of people make some correct bets without knowing that he or she is on the right side. Why not bet it with confidence?? That's what the nor will do for you! With the nor betting progression, helps with money management, it's pretty hard to lose your bank roll. I truly believe that any bac players who doesn't get this manual is foolish. Even if they think that they are good players as is this will make them a better player.