One thing is certain, I'm never folding KQo here when it folds to me with 20 bb's. I more than likely just rip this in as the players behind you are going to have to wake up with a monster to call. With their stack sizes they are probably even folding like A10, AJ, 77, 88, and maybe even 99. Raise folding isn't horrible either, although I do hate doing that with 20 bb's. Raise/flatting is horrible imo. Give em the ol' stuffy baker and increase your stack by roughly 10% here.

I think flatting is terrible with your stack size. 4b jam or Fold imo. I personally would jam here as KQ is the nuts vs an aggro player in the blinds who has a tendancy to 3b. If im him in all honesty I prolly jam A x vs your effective stack size.

I think to raise call in this spot you need 35-40bb +

Raise/ jam probs about <30 bb

The only scenario i imagine raise folding is if he stuffs it down your throat then its close and i dont really love calling off with K high.

When the action folds to us the 1st thing we should think is “what is the best way for us to get our stack in?”

Jamming is the simplest and probably most correct vs unknown or average opponents. It's unexploitable.

Something must be said for raise calling (inducing) vs some villains though

With a lot of history/reads etc it can be a lot more profitable to do this if;

1) he knows you are capable of r/f 20bbs from LP

2) he is capable of 3betting air

3) he can 3bet fold

OR he can 3bet/call with worse than KQ

These are a lot of thing to think about but essentially when we raise instead of jam, we offer villain the opportunity to put more chips in to the pot. If he is capable of doing this with worse hands than ours (which obv depends on our history) then it is higher cEV albeit higher variance for us in the long run.

There is a small problem with only raising pre – at lower stakes we get called way too often and are forced to play a pot post flop with <20bbs which really sucks when we miss.

Food for thought.. but i'd probs just jam it pre and move on whatever happens.