Game is 5-10 spread limit, every bet or raise can be up to 600 at any time. It’s a mix of 5 card double board high, 5 card high (single) and big O.

Villain on btn is way too loose, way too aggressive and very sticky. He makes lots of fundamental mistakes but has great poker savvy and instincts which make the fish punt off to him repeatedly

Hero (2200) in SB with Ah2h3s6s7c. 7 handed

Pre: UTG straddle 20. Mediocre reg in HJ opens to 100, V (btn) calls, hero raises to 700, both call

Flop (2130) : TsTh3h
So we have bottom pair and nfd on a paired board

Hero checks, reg checks, V bets 600, hero calls, reg folds. Not sure I would call here vs population but no brainer vs this V for me

Turn (3330) : TsTh3h 7h
Now we have nut flush and nut low draw. And bottom 2

Hero donks 600, V tanks a bit and calls

River (4530) : TdTh3h 7h Ts
Now there are trips on the board. Hero has 300 left and decides to ship it or check call?

I'd ship it for value.

Don't really like the raise pre but as played I would have bet the flop.

the preflop 3bet from the sb is really bad w this hand

as played, ship turn

I think pre is totally fine. Also I'm not sure if everyone understood the rules of the game.

its prolly not a mistake from a math perspective but with no high cards and approximately 0% chance of taking it down pre, its messy to apply pressure oop when theres no low draw otf. replace the 6 or 7 with any broadway card and id agree with you about blasting from the sb. them not having a good grasp on the rules is another reason id flat here so they can call off with worse low hands postflop if we get a favorable board texture.

I feel the same. Also I've played in this exact game a bunch so def not making a mistake with the odd structure.

I think if you are trying to apply pressure OOP you are doing something wrong. I think 3-betting is good because it pushes equity and makes a more favourable SPR for OOP.

I mean I sorta agree with you - I just think the equities run pretty close and this hand has super good playability on boards we like, easy to play etc. I mean look what happened on the flop in this hand, I want to just sad get in our remaining $1500 on this awful flop because what else can we really do?

pushes what equity tho? its not like this hand is a substantial favorite over anything "mediocre reg" is raising pre. flatting will put about 400 in the pot assuming the straddler calls so hero can play 2 streets with a hand that will flop pretty good visibility oop, then comfortably fold or get stacks in by the turn. this hand sux to play this deep in a bloated pot without flopping a nut low draw since we unblock all the high cards. im assuming villian showed up here with some kind of overpair to boat up, if he didnt river quads.

Well, whether this hand pushes equity depends quite a lot on their ranges. I'd assume they are wide enough (say opener 25% caller 35%) that this hand can be 3-bet value, but I don't play in this game. If their ranges are 20% 20% I agree that flatting could already be better.

The rest of the talk is a bit alien to me, because I don't view poker like that. After we 3-bet, yes there are some bad boards, just like there are bad boards when we don't 3-bet. And yes, hand plays differently now that the pot is bigger. It seems to be just a matter of what people are comfortable with, not about actual optimal play.

You're ahead of a 100% range on the flop (not by a lot tho), and calling puts more than half your stack in. Why are we calling? If you are hoping to be ahead of villain, raise flop.
Also don't really see the point of blasting off pre, that's how we arrived at this guessing game in the first place.