V1 is a whale, very loose but somewhat thinking postflop. Capable of bluffs and aggressive with value hands. Capable of folding.

V2 is a mega whale capable of calling insanely wide and donking away his stack on draws or extremely light.

$5,100 effective, hero is effective stack.

Time rake 5/5/10/25 8 handed. Folds to V1 HJ who limps, folds to CO v2 who limps, hero iso raises AcJd to $150 on button. Folds to limpers who call.

Flop $495 As7d4h, checks to hero, hero checks

Turn As7d4hTs v1 bets $200, hero calls

River $895 As7d4hTs3d V1. Bets $1,500. Hero?

Analysis:

Preflop seems standard vs these villains, my hand is ahead of their range. Flop check for pot control as they can have offsuit aces for aces up and will bet worse/bluff later streets.

Bet on turn could be any pair or draw. 2p+ I think villain bombs more.

River most obvious hand for value would be 65, maybe A3. Most obvious bluffs would be missed spades, and I have none. There are also some other missed straight draws out there. I don't really know how often villain overbet bluffs, can't recall if I have seen overbet from him.

I don't expect to be outkicked here, so I think my hand is identical to AK no spade. I guess I could have ATs, AA, TT, and even A5s would block 65. I think I can find enough bluffs, but without knowing if V would really run a bluff like that, I am not sure how I should approach the situation. Especially since my hand is underrepped and looks like KK, QQ, JJ. I know I have seen villain bluff for closer to pot.

why dont you cover the whale and blue whale?

I am not rolled to always cover them and buy in $10k+. I would not be able to deal with a 10 buy in downswing let alone 20. I am usually buying in for $2-3k. I will shot take occasionally when the min buy is $5k, and I will still play if I build up my stack enough. Also, the game has pros that will buy in to cover the whales. The whales are all independently wealthy, and the pros are not scared money either, so the game is very high variance.

Several pros were buying in 30-40k deep later on to cover the deep stacks, but the game starts shallower early on, the pros show up later, and I usually am not there for the end.

Sounds like a big game. Sorry. I have no meaningful insight on your hand. First instinct is fold if he never 2x before and is a whale, but not sure that is correct. I like that you think different from most and give some interesting spots most of us would never talk about or see.

i kind of want to raise the turn. river seems villain dependent but without simming it u probably need to call with a bunch of these ax at some albiet low frequency, obv a5 / a4 / a2 best candidates. id think your kicker doesnt block any bluffs except j9 so maybe this is a good one to call sometimes

This game is quite bigger than what I am used to, so the population is likely different as well.

Anyway, from my limited experience in live games, overbets are extremely rare, especially on the river and for "big money".
Therefore, I would fold by default, until I get some read that V is capable of overbet-bluffs.

I'm folding river to this sizing and not overthinking it.

Flop checkback seems misguided.