5/5 PLO hero $4k. Most straddling $25 on btn, some $10

KKJ5ds (clubs and spades) in bb

Straddle $10 on btn

Sb fold, hero call (looking to limp 3bet since it's going 5+ ways every flop to a single raise, whole table trying to limp to see flops, and there's a very very agro player still to act), MP call, agro player $50, btn call, hero pot $215, mp, agro player, and btn call.

Didn't expect to go 4 ways but here we are. MP has about 2k, agro player has 3k, and btn has 1.7k behind when going to the flop.

Flop ($865) T53ddh
Checks through. Seems pretty standard.

Turn 5h
Hero?

At this point, nobody should have a boat. We block the 2 pairs that made a boat and I doubt someone called pre with T5 or 53 in their hand anyway (possibly AKT5ds or something tho but idk if they always x flop). Nobody should have sets either with pre and flop action. 33 is possible I guess but I don't think they call pre with a 33XX hand, though possible. Probably the only boat anybody could have. But we are OOP to 3 players.

Bet 200 or check both fine.

Agree with OmahaDonk -- unless the aggro will raise you perceiving weakness, then just check. By default, I check/call.

What are the reasons behind a smaller bet instead of a bigger bet if we decide not to check?

I don't like owning ourselves with a bigger bet. Also, as pre-flop raiser, if I happened to have a 5 in my hand (or TT), I'd bet smaller, too.

As stated, I default to checking with an aggro player behind.

Avoids value-towning ourselves. Easier to balance. Fewer draws likely to come along now that the board is paired, so we don't have to worry about pricing them out, and no new draws from the flop means we're less worried about protecting versus draws than we are having an overpair or AT feel compelled to call along.

There is a new draw, hearts. Idk how much that matters though

Feels like we should bet here, half pot maybe?

Also, is our hand really good enough to limp reraise here? It feels like a lot of live players are going to cold call an open, and if you call a 3bet, the cold callers will overcall the 3bet. Same thing will happen if you limp reraise. I think our hand is playable as a raise/call. But to pot it over an iso in the worst position, reopening the action, that seems like an overplay. I'm not sure how great limp re-raising from the sb is, but as far as hands to chose from, we don't have aces, we aren't that connected, and we don't have a suited ace.

We're not meant to win a ton of the time in multiway pots. We don't need to win them that often for them to be profitable.

Agro v raising doesn't sound terrible though?

It's another way we can lose, which incentivizes betting bigger, and there's now more hands like an overpair plus a heart draw that now doesn't want to fold, which also incentivises betting bigger. This isn't a binary decision, though, so as long as we can balance it, which, reasonably, we should be able to do with a wide range of bet sizes, we just let that turn bet size creep up a little, but I certainly would be going less than half pot here still despite these factors. Not when our hand just isn't quite strong enough to bet big to protect, but is strong enough to bet small to get value. And we still get some protection from a small bet as a number of dry draws or pairs will have to fold their equity.

Yes, sorry, not bad if aggro raises us. Actually a good reason for the smaller bet.