[TStoneMBD]

it depends on how you define the word vacuum. its quite obvious that the call is -ev if you never play against each other again after this session unless of course stinky has enough bluff equity that the call is profitable, but that is truly unlikely. if you factor metagame into heads up play which is an extremely vital factor, i believe the call becomes +ev in many situations, especially in the type of situation youve defined. you cant let a hyperaggro player 3bet you constantly and play hit or miss against him. youll never beat him that way and that is why im often considered hyperaggro when im playing heads up because that is how many people react, by playing hit or miss and hoping for me to overplay my hands.