Personally I don't like that play. It worked great for you this time but many times you will lose big, especially in a ring game. Its just not my sorta style. Once the guy called my 500 I don't think I push because if he calls there is no way you can win. I know thats the point of a bluff but its just not my style. I guess I just don't have the stones to do that. I mostly play limit holdem anyway so 72o is an automatic fold.