One of the concepts that draws me to Omaha, is that it is so easy for me to overthink HoldEm. I have to have something to distract me in Holdem, else I tend to think myself to death. So usually I pay more attention to some solitaire game I have running on the side. PLO8 solves lots of that need for distraction.
Another concept is that in any Omaha hand, we are dealt the equivalent of 6 Holdem hands each! And we are up against each player who also has 6 hands. And with a split-able pot, we won't want for action. The 6 hand concept is one that Holdem players seem to miss. And even when they start to realize it, they tend to ignore the fact that each other player also has 6 hands. At an active table, that could easily mean we are up against 30 hands! In this hand I am up against at least 6, (and AA seldom does well against 6 hands in HE), with the possibility of being up against more than the 6 UTG represents. I want at least 3 of my hands to have at some playability.
In this case I have 1, and only 1 hand and am likely to get called if I raise. With the SB, the very real possibility of getting re-raised as he is short, and time is running out. So while the notion of raising to isolate briefly flashes across my brain, I nix that thought in a heartbeat. Yes I do have all those blockers for almost everyone's initial hand evaluation, but that isn't enough to sway my thinking.
I assess my tourney position and tell myself I am in OK shape.
I am up against the table CL who has probably noticed me going to showdown with iffy hands that got lucky. I do that a lot most days, and make no secret of my penchant to chase in PLO8. They think I am a lucky SOB, i see it as being a bit more gamy than them. It is a double edged sword. I am still working out how to wield that sword.
So then I think briefly about just coming along. Briefly. At this stage in the game, these remaining players have a clue. While I put great stock in a motto of 'Stick around, see what happens' which is also a double edged sword attack, I am sitting in good shape, and poised to get to a FT. I have no desperate need to play this hand.
It's true that at the lower levels of PLO8 it is nearly impossible to bet anyone out of a hand, so the raise is less likely to work.
As for the isolation attempt; the situation IMHO, is isolating me OUT of this hand.
I folded. Based quickly on the fact that really, I only have one hand. The only way this hand can improve is if the board trips. That is rare enough, and even then the case card is worrisome.
The one thing that pisses me off in a situation like this is that in the greater scheme of things, I just got 6 AA hands and got nothing for them.......
And BTW, I would also fold 3 aces unless the 4th card was a perfect fit (Suited K or 2) and even then I would only limp. I would not call a PFR, but would want to see a flop.