I've set up a training drill in GTOW for this spot, i.e. a SRP IP, after the flop is checked through and we're checked to again on the turn.
It's a difficult spot to study, there's no way to get aggregate reports, and my results have be mediocre. Has anyone studied this? I haven't been able to find any distinct patterns as of yet, it's not surprising that it would be rather complex.

I'm assuming you mean IP as the preflop raiser?

But yeah, from what I've seen these spots are pretty complex and difficult to generalize. There are a lot of seemingly contradictory tendencies depending on the specific board and runout.

Anyway, sorry I can't be more helpful. I'm mainly responding to subscribe, because I would also like to learn some better heuristics for this spot.

It's easy to find yourself in no man's land on the turn with hands that have like a small shred of showdown value and maybe pick up a gut shot or something. Then you're left guessing whether you should start bluffing or just try to get to showdown.

As usual how the ranges interact with the board along with the corresponding frequencies are important to crafting your strategy.

One thing that might help you: I like to ask myself how many strong hands are in my range that would like to value bet against villain's range in a spot. Then I think about how many potential bluffs there are.

If you have too many potential bluffs as compared to value hands you want to be more conscious of only bluffing with specific combos.

Yeah as the preflop raiser.

It seems like we're usually checking back our good A-high hands, and even top pair a good portion of the time depending on texture. Sometimes similar looking boards will have different strategies for similar hands, though.

It seems we usually bluff our draws and some of our air at a 50%+ frequency, small or medium sizing based on board texture. I've gotten a better sense of what to do from an hour of training, but I'm being pretty instinctive about it and don't have too much to go on.

If we can't beat K-high on the river, however, we're almost always betting.

Not really a spot I'd concern yourself with overbluffing in. Even at equilibrium OOP is supposed to fold quite a lot to delayed cbets and in reality they do as well. If you have a hand you're not sure what to do with and they've checked to you twice, you should probably just default to betting.

Agree with this. Double delay (check twice and bluff river) could be good too, but the point is to not give up any bluffs in practice when you know these lines are overfolded.

Thanks, appreciate the replies.

What about when we get called on the turn? Are we continuing to blast the river most of the time, or do we have to become more selective at that point?

In aggregate and as a generalization, you should still bluff vs most opponents.

Yeah generally players overfold when they check twice OOP, and also overfold river.

The heuristic I shared is really more of a general heuristic. It's just a way of thinking about how your range interacts with the board. Generally when you have a lot of strong value hands and less air compared to your opponent you can bluff more.

Typically when the OOP player checks turn after you checked flop their range is pretty weak compared to yours, so you can bluff a lot. This is even more true in practice because a lot of players don't protect their checking ranges.

Just be a little more selective if the board is better for your opponent's range than yours.