Villain is a reg, agressive from what I've seen. I messed up this hand preflop and on the flop. Preflop I should 4bet, I have AKo in my 3bet calling range, but in sqz pot I should always 4bet imo. otf he goes for 1/3 8.60bb in 27.50bb and I think that without a hearth this is a raise almost always. Whats our play ott when he goes big?