Pre-flop with QTs OOP vs loose opener

Definitely fold to the 4b. The 3b is ok but I wouldn’t do it every time.

Thanks for responses guys - you're right, SPR too low for that call!

Incidentally, given the stack sizes, what would be the approximate amount where a call by me would be correct do you think?

The call isn't that bad given pot odds if you think he is usually bluffing. This is a decent hand to bluff shove with also. I don't agree this is an automatic fold.

The problem is QTs is dominated by lots of 4bet bluffs (AQo, KQs, KTs, QJs) and it will be tough to navigate OOP. As someone else mentioned, you could 5bet rip rarely if you have a read that he's 4betting you light, but I wouldn't do this without strong reads and history where you've seen him 3bet fold or 4bet fold earlier in the session. Sometimes it's better to 5bet bluff strong regulars who are capable of making big folds than someone who is VPIPing that much.

TLDR: fold>>>jam>call

Thanks again for responses! - you guys might have a good point with the bluff shove idea, I do have 40% against AKo after all, and am only in really bad shape against QQ, KK and AA. I'll also get some folds from QQ and AK since I have a tighter image (as I know from experience - I've had players fold AKo face up against me to a standard preflop 3bet on more than one occasion.) So maybe the best play (against this player) was to shove instead of calling (possibly the worst play)?

Yeah, if most of his range is not AA/KK, then shove may be best. Whether he 4!/folds AK/QQ, etc. is important, but what percent of his range is bluffs is more important.

Usually 4!s at low stakes are AA/KK a lot. Given the dynamics, he is often light, so it may be a push with a hand that plays relatively well against a strong range.

When you say he's "loose/impulsive", does that mean he's tilted, or that he's loose and aggro, or loose and aggro and also doesn't stop to think, or something else?

When you say the other guy is "weak/tight", what's that mean? Is he a rock (tight-passive), or playing tight, but also face-up post flop?

I like playing 3B or fold from the SB, and the 5x 3B size seems fine. But even if he's opening too wide, when a weak/tight player player calls, I'd be tightening up on my 3B range. QTs isn't strong enough to 3B, so I'd mostly just fold it.

I don't think he'd be trying to teach YOU a lesson just because YOU 3B him a couple hands prior to this. Unless you see the guy giving you the stink-eye, he's probably not thinking about YOU. He's more than likely thinking about himself.

If he's a thinking player, and he's been opening a lot, but now he's getting push-back, it's possible he's actually tightened up somewhat. If he's still opening wide, I doubt he's going to be 4B'ing you with the bottom of his opening range. And if he does, fine, let him. Just fold, and 5B-jam on him when you have QQ+/AKs.

Don't get caught up thinking too hard about the meta-game between you and another player at the table. If he's truly a reg, he's probably comfortable with how he's playing, and not thinking about you, specifically, unless you've just been clashing with him a lot. And if you have, he may have a read on you, so just fold marginal hands, especially when OOP to this guy.

If he's in the LJ and you're in the SB, and it's a 9-handed game, you'll be in position on him slightly more than half the time. Just pick your spots. Even if it's 8-handed, you'll be IP half the time, so no need to try to slow him down when holding a weak hand.