12 units on column 3
3 units on 0,1,2 section
4 units on the corners 4578, 10111314, 28293132 or 31323435 whichever suits you.
Leaves only 6 numbers flailing about to hurt you which i know is not good.
Total bet is 31 units to win 36 units. I think it's not too bad at all. Triple up when you lose and I go for 3 wins a session.
Comments, concerns, suggestions? All input is appreciation except blatant hate comments. This is definitely not a holy grail but it's a nice little system for quick profits.