CoVSA

Shift some of your 3! range into your flatting range. Tighten up your flop calling range a little, but once you've gotten to the flop / turn with decent equity, effectively close your eyes and press the call button. It feels like a variance train, but I've found that starting in a better than questionable point makes every subsequent decision easier...

Out of position, given the description of villain, I definitely want to 3 bet the flop. C/r vs b/3b is perhaps closer, but having bet I think we should be 3! and (hopefully) getting it in vs draws we crush

Seems like a call?

Raise / fold sucks
Raise / call is spew
And button checked behind on the flop so I'm not too worried about him raising behind us.

DasSmithStar Thanks for the feedback.

If we pot turn, do we not have to call off the river when he jams?

Assume one of the worst case scenarios, Villain has AJT9 with spades. After we pot and he jams we have 52.5bb left and there's 129 in the pot. We need a prerake equity of 28.9% to make the call.

We have 9 outs to the win (1 king, 3 queens, 3 twos and 2 tens) = 22.5%
Plus we have 3 outs to the chop (non spade aces)

If he ever has 2 pair + nfd here do we not have to call the shove?

Sorry, apparently I didn't add my position to the post - I'm on the button, so didn't donk.

My default would be to go small on the flop (1/4 pot) and then size up on the turn if you get flatted.

I feel people overfold both to the small flop bet and the larger turn bet at these stakes.

Giving up on the river if we get there (not deep enough for a meaningful river barrel)

Agree with MajinVeta.

Except I won't often barrel this river. People overfold in a lot of spots, but I fee they often have aces up here and aren't folding it.

I would have 3bet pre in real time, although it is right on the cusp (apparently KQJ9 is a call but KQT9 is a 3b).

Don't like leading at all. Bet / fold seems like a waste of equity and bet / call is going to put us in a lot of tough spots. Check call.

Pot turn

Check river and evaluate, especially if you think there is a chance he will stab with diamonds. We are rarely getting 3 streets of value from KJ if we bet.

Haven't read the other responses (interested to see how my responses match up), and take this with a pinch of salt as it isn't going through a solver, but my feelings are:

1. Bet. Not folding to a c/r. We have so much equity, and if they are pushing a draw it is going to be pair + inside wrap at the very best - and more likely to be pair + gutter.

2. Checking back. We have decent equity, and can make good decisions on the turn in position. But we hate life if we get c/r. B/3B, B/C and B/F all seem horrible.

3. Betting this, but on the small side. We have decent equity and block a lot of his combos that he wants to c/r with. Could size up on favorable turns.

4. Quite opponent dependent. If he is only c/r strong hands here and generally overfolding I don't mind b/f. Checking back and playing a turn seems good against more aggressive opponents though - especially if they are going to lead the turn by default.

5. Checking back. We likely have good equity, but hate getting c/r. On a rainbow flop I'd be more inclined to bet.

6. Betting smallish. 10 blockers make it unlikely he is going to c/r here without having us crushed, and there are a number of turns that are good for barreling (or value betting).