[aggie]

This seems like a "let's throw a bunch of money out there and hope he folds a better hand" sort of move. But as you said, John is a good and thinking player and may get stubburn with the better hand. Before John lays down his hand he's gonna have to put you on a hand that beats him and i don't think he's gonna put you on a set or a flush as these both seem unlikely given the play of the hand.

I don't see john having a one pair hand here either and i don't see him folding anything bigger than that. He knows he's getting 2.5/1. He has a flush draw, two pair (34s to be exact), or a set. I don't really like your raise in any one of these circumstances. The only way i see John laying down a bigger hand is if he believes you are extremely tight. I think a diamond flush draw from John is a strong possibility here so I don't think a call would be bad given the nice price the pot is laying you.