Second-Nut Set v. Nit on K934r

With very little in the way of draws, and being very deep and 1 out against the hand the bit is representing very well, I'm pretty confidently pitching this

Fold flop vs a nit raising super deep.

I would call the flop esp with that sizing but fold the turn. I feel like a nitty player would slowdown 3 way with a wrap OTT.

I called the flop because his raise sizing was a little small. But he can only have KKxx or 33xx; not an inside wrap.

If he had bet half pot on the turn, I probably would've called. He still could've had 33xx.

Maybe raise to 300 and fold to a re-raise?

How well do you know him? Are you sure this is only a set and not top two - especially given the modest raise size? If you raise, he should fold bottom set and two pair, and probably re-raise top set in which case you can easily fold. You lose some money if you are wrong, but the hand ends there.

Raising where they continue with better and fold with worse is a disaster.

Probably better to cold-call flop and lead brick turn instead of 3-betting flop. That way I can still get value from 33xx.

Most 'nits' don't bet 3/4 pot on the turn after their flop raise was called by two players, especially in position this deep. Seems like a fairly standard fold, unless your definition of a nit is different than most.

Vs a nit, it's a pretty easy fold on the turn. (Not that I'm worried about him, but you still have UTG, too.)