Every BJ player, newbies to pros alike, have used or heard of the Hi-Lo Count. In the old days, it's been named the Thorp Count, Dubner's Count, or the Braun +/-.
BUT!! Only a few players have heard of the system which is named after the late Peter Griffin.
2,3,8,9,A = 0
4-7 = +1
10 = -1
Like to know if someone here on bj21.com is a Griffin user.