Rags-To-Riches

On board with everyone on putting this into our check calling range. Cbetting this flop then finding a fold this shallow on river when we hit second nuts just seems really bad to me. As played you have to call.

The $85 looks primarily like villian thinking 2 pair is good and trying to figure out where they are at, while hopefully getting it heads up to river for cheap. If he flopped the straight and is competent, he should of bet flop...and more importantly would raise more on the turn, something like 120 to charge draws.

I feel like flatting has its merits....but i feel that we have the best hand here a good chunk and that we need to raise to charge flush draws and 2 pair.

I think there are merits to both lines. Clearly our dream scenario is letting CO Cbet an overpair and have Bu or SB get nuts with something before it gets back to us. I think our decision boils down to our read of the CO and what his cbetting range is. The more likely i think a cbet from him is, the more i like a check. If you've observed him failing to cbet in multiway pots frequently....i like a lead.

As played i think it's an easy call on river, but im not loving it. If he has AA or 69, then so be it. There are too many Ax 2 pair hands, poorly played sets and air in his range for us to fold.

Villians range by river should be mostly 99/1010/JJ/QQ...though i can see a flopped set being in there with such a clean board and having position on you. Flatting your 3b with AA or KK w/4 ppl behind would be very bad, so those can be safely ruled out. We can also pretty safely eliminate any ace from his range by the river, so the ace falling is pretty trivial.

The question becomes will he call a shove with 99-QQ now? That would be pretty ambitious unless there is some serious back and forth going on between you two. Your hand is pretty face up at this point so I just don't see anything worse that calls our shove here...and i do believe villian can have a set here. I think we should be check/folding here tbh. The only bluff he can show up here with if he bets/shoves is 910/56...not sure if that's in villains flatting vs 3bet range PF though. Villian turning 99-QQ into a bluff would be pretty bad considering he can't rep an ace here ever. I just expect this to go check check on river vs his 99-QQ almost always....while he shoves his 88/77/33 and 910.

Am i way off here?

I dont like the 3bet here at all here tbh...especially with flatting for us being so perfect in almost every way. I also dont like your sizing, the fold by the opener is terrible...and you almost always are going to be going 4 way here in a bloated pot with a weak (often dominated) hand vs 2 calling stations and a decent guy IP on you. So what does this achieve? I would much prefer a sizing of 135-150 being so deep, at least then you get the button to fold a lot more.
The situation we are in when we decide to 3 bet is pretty perfect IMO. There's roughly 120 in the pot and 25 to call, for almost 5-1. We have a hand that flops decent. We have relative position on the PF raiser, and absolute position on the two stations. On top of all this, when we get 4 bet by the opener...it is a DISASTER.

As played you have to bet for value. It's a fairly ideal flop for us, but we still need a little bit of protection. Your repping a strong range, so you can't assume either villian to open up their bluffing range on the turn if you check back...especially with it being 3 way. So im not really seeing what a flop check does for us here. Maybe if they were overly aggressive and spazzy i wouldn't hate it, but as you said they are stations, so value betting seems like a no brainer. I'm betting 180-225 here and checking back a lot of turns to open up their river bluffing range/bluff catching range. It's about as dry a flop as you can get, so i would expect our cbet to win a huge percent of the time...and to see a ton of Q10/QJ/QK when called.