You can use 72o even at the BTN. Never at the CO...Even if they never fold, 72o still can be profitable open raise. I even call 72o sometime
. Vs SB min raise. This are a two cards, you know, pretty bad ones, but still if they are enough factors to play any hand, you can play even with 72o. Some of my default ranges is 76% and 100%. This means, if I open raise with J5o , I almost always will have 72o as well. And if I call with J5o. J5o is pretty strong compared to 72o, but this is not important in reality. No time for such a perfect calculations. If I see value to play ATC, well, I play with 72o as well.
I once played at micro limits, "free coaching sessions". For my friend. And he said "You play pretty loose, you open raise often with such a bad
hands, like 72o. A really don't like that, you don't play seriously or you are just a fish". But I am a nit. "Pure" nit. That's the reality. And I fail to explain to this guy. Why I MUST do that. For 4-5 years...