I'm still playing at the 2NL level and so far, my game is more about learning when to fold, winning the battle of mistakes and avoiding tilt. For me actually, bluffing is limited to c-bet and semi-bluff on draws with good success so far I must say. I've been bluffing 2 and 3 barrels a couple of times and the outcome: won good pots and had nightmare hands where villain was calling with second or low pair. But overall I try to avoid it. The hammer of futur bets is something I will keep in my sleeves for higher microstakes eventually. At what stake does bluffing two or three barrels in a row really comes in to play and may become a EV+ play ? Is it a play that comes relatively frequently, like 20% of hands where you see a flop ? More ? less? I'm curious to know about that.