[Harv72b]

We have a pretty solid read on this villian as being loose/normal. Or in other words, I sincerely doubt that he's ever 3betting the turn with a worse hand. In fairness to your (elindauer's) points, you are correct that he's never folding a better hand, and to bring up a new point in the argument against our turn raise, this seems like a very good way to get him to fold a worse one.