I like flatting pre to keep the fish in. It's definitely a good strategy. Your river bet HAS to be bigger though, you are just inviting this raise here from anyone who knows what they are doing. I'd bet this river like 32. I understand why you thought this size would be better to gain more value from the weaker parts of his range, but against anyone who knows what they are doing, it's fairly easy to put you on a hand going for somewhat thin-ish value that can't stand the heat of a raise. Therefore, making this bet w/ like QT or whatever would be sweet.