Somethings I didn't consider in the explanation above that he wouldn't consider, but as quality players we need to consider. On the flop I had the over pair plus the gut shot. I made a standard c-bet to eliminate the possible draws that were out there. After the call I was considering a possible open ended draw for him. When looking at his odds, we know that if he has a 7, we have 3 outs to hit our straight that counterfeit his hand. If the turn is a 7, he hits 2 pair and we pickup the straight. All of that was going through my head as I selected bet sizes. The turn didn't improve his hand at all, based on where I assigned him during the hand. I put him on the 7x hands and strongly considered any of the hands that gave him a pair plus the straight draw. While he picked up a flush draw, I had a potential better one, again counterfeiting his hand. While I was 99% sure on the river I was beat, his bet size was perfect for a value bet, but I was willing to pay to see how he played the hand. There were many notes made after the hand about how he played it.