I'm playing up to 600nl 6 max and I'm still unsure what my 3b calling range should be. I find myself getting into trouble when ever i call 3 bets on anonymous tables with hands like KQ, QJ, QT, JT, sc etc... with such few stats vs villains. Majority of the time that i call with these types of hands i run into premiums or i get barreled which forces me to fold. I basically level myself into thinking that their ranges are gonna be wider from the blinds which in general is true but tbh i don't see a ton of aggression on the Anonymous tables at least at mid stakes.