I put him up as soon as you guys mentioned it, but I had about 3 more videos uploaded so he won't show up for a while

Not sure I understand the question. Do you mean what's the threshold where I start 4betting more than usual?

exactly

This is pretty difficult to measure, because there are so many variables that go into someone's 3bet % from the BB specifically, and by the time you get a significant sample they; 1. Might have changed their ranges a couple times since you started playing them, and 2. Likely made some adjustments vs you specifically. Very generally speaking, when I start seeing around the 17-20% mark from the BB I begin throwing some looser 4bets in there.

Reads in general is something that is very difficult to quantify, because there are so many varying factors that matter (such as your opponent playing tilted, or drunk). For me personally I would say good, diligent note taking is the biggest factor that contributes to me adjusting my strategies vs players. If your notes are good and not too wordy, you should be able to spot trends in your opponents game that you can exploit. Of course once you start adjusting so will your opponent, so it's all about staying focused, taking in all the information you're given and making your best guess on what he/she is doing ;)

Hey, thanks !

So if someone is playing a tight 3bet range but still decently balanced and I think they play well postlop, I will cut some of the "value" 4bets, but keep the composition of my bluffing region relatively the same with lower frequencies. If I am playing a super tight opponent who just doesn't 3bet unless they have it, I will only 4bet the very premium stuff and not worry too much about what my 4betting range looks like.

Cheers.

Krzysztof Slaski - Thanks for the help! I was definitely thinking along the lines of someone who only 3bets a very strong "linear-ish" range. I know it seems somewhat self-evident that if they only 3bet with very strong hands and are oblivious enough to not realize that this is a problem then we shouldn't 4bet bluff them, but I always feel awkward when I 4bet my Super-GTO range of AA, KK, and AKs against these guys nonetheless. =D

Hey,
I don't include an exhaustive selection of betting options in the tree because the solver would take forever to run, and the strategy would become impossible to follow/analyze. Essentially what I meant with my statement is that the bet sizing chosen by pio is one which is closest to geometric (and in this spot it would likely chose the geometric size if it had the option, but wouldn't be a significant ev difference from the slightly smaller bet)

Hey, thank you !

How do you change your strat if you are play in high rake environnement ?

The higher the rake the more important it is to try to end the hand sooner. So I would 4bet a little more frequently compared to calling, and I would use a larger 4bet sizing. This of course means that blockers become more important as opposed to the suited connectors when designing your 4betting ranges.

Thanks for the video suggestion, sound pretty interesting and I will keep everything you said in mind when making the next exploits 101 overbet video (which is definitely coming since the last one got a lot of positive feedback)

Cheers.