re: Poker & 2NL: when to limp with pairs for set mining?
Never limp with pairs. If I see someone limp with a pair in ANY format I immediately assume they don't know how to play poker.
When you open your pairs you range balance, and when you hit your bet sizes are going to be larger because they correlate to the pot size.
honestly, the only time I respect a weird limp is if i'm railing a 10/20 match or higher and I see some super genius limp their buttons for a series of hands, which for 99% of players is really bad but in certain circumstances when the level of play is really high and their is a history, the leveling is necessary