yea interesting point wufwugy makes. to me the flop bet is value. Turn bet should be a little bigger as a combination value+protection bet. River I've got a little bit of fear in me, but that's where I see the blocking bet come in more than flop and turn. Checking puts you in a tough spot on the river but your 1/2 pot river bet is easily raisable. I'd probably check it and call a small bet.