[Jesuitical]

If you're CERTAIN CO doesn't have a hand because he checked and Villain is betting, like, his entire range here, you probably have enough equity if called (and FE) for a CRAI (keeping in mind that the button's range is wider here as the second caller in position, and that if you're opening K-J UTG on a consistent basis you probably have the kind of image that widens their ranges even further).

I'm just playing Devil's advocate, though. One thing to remember is that if CO checked, say, the nut flush draw here knowing that he won't get priced out of his draw by the button, he's rarely folding here, because he has a ton of equity with that draw if he's up against two callers, and even against one he's getting a pretty good price. The same goes for the button.