agreed.

I honestly couldn't put them on ranges in game everyone was playing so bad I just had no clue most of the time (two hand examples were given in the reads in op) if I had good enough reads on their ranges and what they peel flop with and how they react to turn cards then this probably wouldn't be a thread.
I'm still getting used to playing big multiway pots with everyone having superwide ranges.

Seems like severe braindeadness doesn't change anything and its still a jam which is good to know.

So this game (or at least this hand) is playing more like my regular stakes (6/12 - 8/16) than 20/40. I used to level myself with the concept of collecting more overcalls. The reality is in a pot this massive villains will call numerous bets with ridiculous hands (gutshots, OESD's, single pair hands hoping to land trips, etc.) so shoveling money in on the turn is the best way to maximize.

The flop is basic equity. You are 2:1 to boink the nut flush by the river, so every bet going in 7 ways is uber value for you.

OK so I'm in the small minority here but let me try to defend just calling again...in this particular spot, even bad players recognize when the fd gets there on the turn. The players behind you can hold out hope that no one has it until you raise, but once you do I think they're folding a lot of hands that can't fill up on the river. I would always jam the turn if I make nut straight, big full, etc in a huge pot, but I think the nut flush is different b/c it's so obvious...maybe I'm playing in tough games but I've seen plenty of players (disgustedly) muck in big pots when the fd comes in and someone raises. Also, if these players are that aggressive and spewy and bad then there's a good chance someone behind will raise anyway and then you can 3bet. Having said all that, I'm pretty sure that at game speed I'd raise anyway which everyone seems to think is the right play so whatevs.

riker:

a lot of incorrect slowplay has its genesis in incomplete observation.

Yes, sometimes people fold. But other times people have hands like sets, 2 pair, or smaller flushes that will keep calling. That is why it isn't enough to say "I'm going for overcalls". You need to establish that their ranges are such that you get more value from the call.

OK lawdude here are my possibilities and hand combo math on the turn:
Sets: 66, 44, 22, TT (12 combos)
2-pair: 54 combos, but given that preflop went limp, raise, 3!, then some coldcalls and BB cap, how often are we seeing 2-pair on this board? Out of 54, I count 15 that are soooted, so let's say those are reasonable(?) to include in the range.
Small flush: 28 combos (8C2), but again that generously includes hands like 9s3s, etc.
Let's assume those (55) hands are always calling when we raise the turn. What hands will find a call if we don't raise but will very often fold if we raise?
Overpairs: AA (3), KK (6), QQ(3), JJ(6) so 18 total
Other PPs: 99, 88, 77, 55, 33 x6 makes 30 total. If you don't raise the turn, I think these will all draw to their 2-outers/gutshots
Overcards: I count 73 combos for AK through QJ minus our AQ. For these hands I think it makes a big difference if we raise vs call.
Hands that paired the ten: AT (9), KT (12), QT (9), JT (12), T9 (12), T8 (12)...lets stop there. That makes 66 combos. Do these call if we raise? Maybe, maybe not. I think they definitely call if we just call.
So, that's 187 combos that we might blow out with a raise, vs 55 that we don't. If the number of weaker hands that will stick around for the call is more than double the number of stronger hands that will stick around either way, then a call has more value. Here, it looks like around a 3:1 ratio, so that would suggest a call. This is not even taking into account getting raised by some of the stronger hands so we can 3bet, where they may just cold call if we raise. I think all this adds up to a call here.

That's a start. However the most important part of your post is this:

In other words, you have to put each specific player on a reasonable range for their action.

You have a pre-flop 3-bettor whom you think is a reasonable player, who led out on the flop and then called the cap. She should be the easiest player to make a range for.

You have a small blind who is a "typical bad player" who called 3 bets, then called the cap, pre-flop, and then check-3-bet the flop, called the 4th bet, and led out (I don't call this a donk as SB didn't get a chance to re-cap the flop) on the turn.

And then you have 2 fish who took 3 to the face pre-flop and called the cap. One of them called 1 bet and then called 3 more to the face on the flop.

The other raised the flop and then called the cap.

I think you have QUITE a lot of information to assign each player some sort of range. But each range has to fit all the pieces of information you have. Then we get somewhere on overcalls.

Ya this is a raise anyways and I screwed up but if you guys want to do this I'd give sb any 2 suited and when he donks he has a flush always. Original 3 bettor has an overpair when she bets the flop always. Bb probably has anything connected and is just capping to gamble, and peeled the flop with anything he capped with (yes even with the 3bet on the flop). Limpers can have any 2 save for maybe the worst unsuited hands (hands like J5o are in for sure and not folding the flop). Limper 1 doesn't have a pair he just called the first bet he would raise a pair there. Limper 2 can have any piece he's insane (1 or 2 pair, gutter, set, etc).

Not sure if these change anything or matter, just in case you wanted a clearer picture of ranges for combo counting purposes.

You forgot to include any hand with a 3 or 5 or Ks that may call the raise plus if we raise it may get capped so the ratio of hands doesn't have to be 2:1

In general, raising with the nuts is almost always correct in a multiway pot, unless the board is super dry and the deck is crippled by having quads. Many times you get 5+ bets HU or a cap 3 ways against sets, straight, or flush. That's a lot of bets to leave behind.

Why even bother to assign ranges when you have the nuts against six opponents?

Srsly, I don't get it. Seems like useless mental masturbation to me.

Leo, I know that and you know that. I'm trying to lead an apostate to see the light. (And the more fundamental point is "going for overcalls with the nuts" is a nonstandard play which ALWAYS requires a read, even when we are just talking about one big bet on the river.)

fyp first

Hero capped the flop. Everybody expects him to raise the turn. The pot is huge. He has the nuts. He's ahead of everyone's range.

I don't even know why this is threadworthy except that I must be a simple-minded sob after my near miss.

OTR: can you help me out here?

People are more likely to call two bets on the turn with something than one bet on the river with nothing. Only reason to call the turn is if you think that someone behind you will raise.

Ya I completely butchered the hand so I decided to post it to see if anyone on here could come up with something defending the play to make it seem not as bad. You didn't miss anything leo.