[erc007]

I think u have to open-shove this flop here. This is the only way to iso CO, and button never has a monster here. Obv if u check, CO shoves and button folds it's an easy call (getting 5.5 to 1) with two overs and a BDFD. Much tougher if u check, CO shoves and button just flats. Usually you wouldn't have to worry about this, but he coldcalled your RR pre (which was the proper size) so he might just call if he has a draw here. U don't have near enough chips to iso CO if u shove after button calls, and calling committs u anyway, so this spot really sucks on the flop if u check, CO shoves and button comes along.