[Lmn55d]

I don't think an unknown raises overs enough to make betting more profitable than checking. I don't think it gets checked through very often, and sometimes you will be able to make a good fold if it comes back to you for 2. Or checkraise the PFR if it is folded back to you.

If you have a read that says that PFR is aggressive enough to raise overs, or one that says he wouldn't continuation bet the flop, then I think betting is fine.

I used to bet into the PFR a lot in these spots, and I still think it is a reasonable play, but I have come to like checking unless I have a reason to believe he'll raise a worse hand.