[registrar]

We really need to know what hero did 3/4th.

Check-call seems to be the way ahead but I could make an argument for, if not actually perform, a bet fold if our hand simply has to be A/baby 3335x or a boat as far as JJ sees it. I mean, I think it's safe to say that I'd be right to bet-fold here because were I playing this at the WSOP I'd just be playing competent ABC and jamming the pot with legitmate hands and I'd expect JJ to have realised that. Also, if I've been seen as a potstuck station in a few hands.

That's your two options, IMO.

Check/whatever allows him to check behind with hands that will pay us off which probably pay us off/split.

I'd want some read-related reason to believe that JJ is going to bluff me on that board, which he's not going to have unless I was really passive until fifth.