5/5 effective 500.
Game is 8 handed playing pretty tight pre.
Hero LJ (500) pretty active image but I haven’t shown anything down yet.
CO loose reg (800) he’s been seeing lots of flops but then giving up. He posts.
BB (300) loose fish giving lots of tells.

Hero LJ A3dd opens to 25. CO calls.
BB calls.

(85) flop T22ddc
X hero bets 55. CO calls. Fold.

(195) turn 7s
X v bets 75. Hero x/r to 420 all in

One thing bugs me: will v bet/fold a small flush draw here? (If so my line is trash)
But I think bet/folding a small flush draw would be a mistake for him to make... however if he is making this mistake I don’t want to do a play that makes his mistake good...?

To be clear: if he bet/folds a small flush draw this is bad because I can take this line with JJ+ where he releases a ton of equity

Why is this a bad thing? If he releases a lot of equity that is great

You answered your own question. Sure he may fold some low flush draws (which still have 15% eqty) but sometimes he will also fold JT which is an amazing result. If he folds his flush draws, then do this with JJ

The line overall is kinda funky and why do you want him folding when we have JJ+ here? I think our overpairs tend to barrel much more than x/r anyways. Our value hands don't want to miss value from when he checks turn. Kinda hard to construct a bet flop, then xrai this dry ass board range. I'd probably bet much less OTF since it's hard for anyone to have anything so we're going to be overbluffing the board and want to give ourselves a good price. I think firing a second barrel or check/calling here are much better lines.

There are 8 players at the table. It is described as pretty tight pf. Yet the three players in this hand are:

Hero, pretty active.
CO, loose, seeing a lot of flops.
BB, loose fish.

Is the rest of the table playing super nit style? Doesn't seem tight at all.

As for the hand, the CO plays an obvious fit or fold style on the flop. He didn't fold on the flop, so he has some sort of hand that is unlikely to be a FD. There isn't much in value that you bet the flop, then x/rai on the turn. If he's thinking (a big question), he's going to realize Hero's line doesn't make much sense. He'll call. But most 5/5 players aren't thinkers, so the shove could scare him off.

What would you check/shove the turn with that you raised pre with? I guess he might fold a J, which is good, but that's about it.

JJ+?

As someone else said JJ benefits more from a b/b line since it hates giving away free equity, but doubt V would factor this in or think about this so this is a completely moot point

The hand that would prefer to x/r is your exact hand

Yes it’s true..

Then the question becomes: should we play this hand in a different way for balance/deception, or should we play a different hand (say AA) this way as well for balance/deception?

(Or neither?)

Why would you care about balance against a bad reg? Against any sub-optimal opponent (read: most of the population) having any mixed strategies is pretty overrated all our moves should be V dependent

I'd judge my decision on whether you have fold equity or not. Based on your brief description, V sounds like a fit/fold player. Since he's betting, he has something and I wouldn't bet on pushing him off it. I like a x/c or a b/b line

It's not easy to misplay our hand fwiw

To clarify terms:
Mixed strategy means playing one exact hand multiple different ways
Balance means playing different hands the same way.

That’s my understanding at least.

I’m not advocating a mixed strategy, I’m just advocating balance.

Yes sorry you're right. I accidentally used them interchangeably