AJ river flush

What's villain's RFI for BU? Since we are deep I would rather just flat AJ. Especially not massive 3b. Is just gonna be tough to play OOP. Because 140bb effective stack 4bet/call AQ for BU look much less appealing, possibly even true for AK too, so we have domination problems, and cannot win big pots from worse Ax unless he is quite bad. There is big VPIP PFR gap so maybe he is fishy but he look like weak passive guy from what I can see. If his fold to cbet is high, I don't mind 3betting and just cbetting a ton.

Like the other hand I think this is a spot where he is never bluffing. Again on the weak passive thing...weak passive guys just check back AK etc. here.

I also prefer just flatting preflop like metza. As played this is imo an easy fold, without any additional info. But seeing as you have 600 hands on him, some other info would be helpful too. Like his 4bet % or fold to 4bet %. If he likes to call a lot, maybe you could make your bets bigger and try to get it in on the turn. It's an ugly spot anyhow.

What you do in NL4?Move up stake yesterday.

What's villain's RFI for BU?

why does it matter? he is iso raising fish, and offsuit broadways are better playing HU especially OOP.

Is just gonna be tough to play OOP. Because 140bb effective stack 4bet/call AQ for BU look much less appealing, possibly even true for AK too, so we have domination problems, and cannot win big pots from worse Ax unless he is quite bad.

Playing OOP is always tough, it doesnt depend on the size of the 3bet, nor on the pot size. I didnt 3bet AJo for value, since this guy is tight, so it was more as a 3bet bluff with a blocker (or merged value range whatever). Why would tight BU 4bet/call with AQ even for 100bb? I just never see it at NL4 from any reg, maybe from fish on tilt.

Also why do we have to win a hand from worse Ax? if we assume that BU will defend hand as AT, there are only 2 aces in deck, so anyway we will hit both Axx board very rarely, that it doesnt matter. And the hand is not only won only by both of us hitting same pair, but also when we both miss, and we bluff, or we both check down etc.

BU may be a fish, but still he has just 10% PFR which is kinda small.