12 min with 8h8x on the turn with a B - XR line on the 7c 5h 2h 6h board solver had 88 pure folding vs the jam and checking back some 8h8x hands to preserve equity as you said. Then you looked at what happens if villain to a B - X - all in line on the river where now 88 is pure calling. Curious why 88 is not calling the shove on the turn but calling the river? I understand now 88 has a straight on the river, but are we expecting villain to shove over pairs on this 4 liner? I assume it folds turn because more over pairs with a heart can XRAI where 88 is crushed. Is it calling the river just because it expects over cards with a heart to bluff a lot? Because as you said SB is still checking range on the turn, so all of the 14% of SB range of flushes gets to the river and can jam.

On the QT8J8 board where you have T9 and take a X-B-B line and fold to XR. I do not mind villains line turning KQ into a bluff. Essentially he is saying the pool is betting mostly AK, K9, or 9x in general on the turn, so when the board pairs on the river, he doesn't expect the IP player to have any full houses. Which is further confirmed when you chose a 40% sizing representing mostly 9x with the 40% sizing. Maybe 2/3 sizing with AK or K9? and maybe 75%+ with boats? So since BB has the boat advantage here based on line taken his raise sizes makes a lot of sense to me being like 105% pot... But he is heavily relying on you only calling K9+ and folding 9x since 9x usually only chops at best.

Not sure how much I like PIO solutions with GTO ranges. If you used PIO to node lock some of the pool strategies it would be more interesting. But feel GTO strategies given how the pool plays is just spinning your wheels. Probably learn way more with node locking a single hand.

32min - Talk about using J10s as a 4bet blocking the calling region... Doesn't this mean you just get 5 bet at a high frequency? At 100bb I am not seeing this hand using any 4bets. I remember Innerpsy used to 4 bet some 76s hands here. This allows opponent to be put in a tough spot with his JJ / TT hands as well as keep all the AJs ATs KJs J10s in SB range which doesn't want to call vs a 4bet. Not sure how much differently J10s is supposed to play at 200bb. I considered 4 betting all suited broadways myself at lower stakes just because players that play a 3bet / fold range from the SB are going to over fold to 4 bet vs UTG. But I would rather use more AQo KQo hands as my 4 bet bluffs. Can you elaborate more on your 4 betting range here at 100bb as well?

36 min JcTc on Ts-4h-3h-6d turn 3BP UTG vs SB. I tend to want to bet 25% on the turn so 1) i don't really cap my range to hands like 99-77 and Tx when I check back. but also because the pool plays 3bet - cbet- X -X pretty often unless they improve on turn or river. Where they still tend to XC turn with AK AQ hands vs small block bet. Where I can play call flop - block turn - and check back river. Rather than be put in a tough spot on any Q K or A river.

40 min - 5h5x on the Q42hh-Qx-9h board. I think opponent should bet the AhJh hand himself because the Jh blocks a lot of flushes you can have in your 3bet call range preflop. Where if opponent had Ah5h unblocking some middling type flushes the river is more likely to be bluffed or you are more likely to have a flush yourself. Not to mention the 9h blocks a lot of flushes you could of been drawing with as well. FPS imo from villain.

Last hand of the video on the 486TJ board where you have 98o and BB has 75h. I think villain took a note out of your book and used a smaller size for value, where he would use a larger size as a bluff. You mentioned earlier in the video doing something like this as an exploit. If you look at your range on the turn that checks back flop, bets turn, calls a raise... You don't have many strong hands that play like this. low frequency of JJ and TT. shouldn't have any 44 66 88 in your range or 75s... I assume 97s bets the flop? So opponent is mostly targeting your J9s, QJs, and AT KT hands right? Not a range that can really call a large PSB or over bet. Looks like a good bet from villain IMO.

I like the format overall, just without the PIO. I think your pool exploits are well explained. Can build some of my own heuristics around them for lower stakes.