It is my theory that there does not exist a single professional blackjack player EVER who has made a significant amount of his money from counting. This includes any and all forms of counting. If you have to count cards to preform your particular advantage play then it is unlikely an advantage play at all.
Definately stay away from martingales and such. That is just silly. But I don't think there is any reason for anyone to ever learn card counting. It is not practical. Small advantages, huge variance, keeping sessions short, disguising play, camoflauge, travel, huge nasty horrible variance, variance, losing all your money, and other stuff. I don't think a 1 percent advantage is worth it even at rediculously high stakes and an unlimited bankroll. Look at the real pros. They don't waste their time counting or other variations of counting. I have only logged about 40 hours of play, but I have read a lot of books and articles and every thread on this site since April. Just as David Icke, I am just following the information. I am not all the way there yet, but I am getting close to the truth. My master plan is starting to unfold before my eyes. I am starting to see things clearly now. You can't keep me in the dark forever. I will find the light. I will uncover the truth. You cannot stop me.