You played it fine. You controlled the pot-size to the point where he couldn't raise you at any time without a flush, IMO. I know some PFO'ers like to get more aggressive on these turns OOP with bigger probes and they make good points on it, but without being results oriented, I don't see how he can raise you without a flush. He'd have to know where the Ad and Kd are from your PF play.

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