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First one I don't like. If he doesn't believe you on the turn I don't think he's going to believe you on that brick of a river. I think LAG players are used to calling with KJ here because of how much they get played back at. I think this works some amount of the time (maybe 30-35%), but not enough to make it profitable.

I like the second one more because it works two ways. I think he can fold medium strength hands like AJ or A8s or JT, but still call you with draws that you are ahead of (QhJh and worse). His flop peel is slightly worrisome, but not enough to put me off.

As long as you aren't giving off a bet size tell (I normally don't bet quite so much on the turn) I think the second hand is good.