Blackjack players, newbies & pros alike, have used or heard of the Hi-Lo. In the old days, it's called the Thorp Count, Dubner Count, or Braun +/-.
BUT!! Not many has heard of the one named after Peter Griffin, where 4s to 7s are +1, and 10s are -1.
Would like to know if someone here on bj21.com is a Griffin user.
p.s. Forget my post below. It's bugged.