[Genz]

Against an otherwise passive opponent, I still c/f. He will call a bet with a lot of hands that beat me here or even raise when he is very strong. But he will check behind all of his marginal hands and certainly a big chunk of his winners. When he bets after this kind of action, I can be pretty sure that I'm beat when he bets out.
Against an aggressive player, I am more prone to c/c. I don't like to block, because that block has to be quite big and I hate to get raised on these on an ugly board like this. And he will bet more losing hands than he will call with, probably. I look at his WSD and W$SD stats before I decide this.