Quote Originally Posted by pokerroomace
my question was more if you could set up a mathematical model to work out when this line is +EV and on which flops. it doesn't matter what we have. as long as we have a fairly tight image.

they think we have a decent hand and don't realize that we could have any 2 cards. what range must they have?

Very opponent dependent when/what flops to c/r. This is why taking good notes on an opponents 3betting range is useful.

Generally, K-x-x flops are good to c/r with Ace high since you have lots of F.E. (the flop likely missed him) and you have at least 3 Ace outs if called. Low non suited flops are good to c/r with a hand like A-Q/K-Q since you have several outs against a middle pocket pair if they decide to look you up. Avoid c/ring coordinated flops (7c 9c Qh is a pretty coordinated flop) since these flops are most likely to have hit your opponents hand in some way. Just make sure you play K-K/A-A the same way when you are OOP though or it will be less likely you have a legitimate hand.