However, I disagree with two of the comments here. Namely, I think they are giving you the exact wrong exploits. If you are at a table of "tight (pre)" players (tight meaning they fold ajo at UTG+2 or something,) you need to start opening more hands pre as an exploit.
I understand what you are trying to say, and in tighter games, I think opening more hands is a must, but I tend to prefer later positions to open things up more, early position is still conceding too much advantage when you do get called.
And also, with AJ in particular, it's a very tough hand to navigate one pair flops in a tighter game. If you flop either and ace or a jack, it's just hard to get paid in a tight game. How many weaker aces are really going to be in that can pay off? How many jacks for that matter as well? You have to bet these hands for some protection, but you can almost never bet these hands just for value. Which is why I belong more to the just play slightly tighter than the opposition playbook more than just play the opposite. At least in early position.
In late position, I will certainly start raising a lot more in a tight game, then I am conceding the button far less and I am putting the blinds in a position to defend with hands that will miss often. Even middling suited connectors can be played effectively for value in position.
Experience has put in a place where I just learn the disadvantage of being out of position, there are very few hands so compelling as to give this advantage away rather than just wait until it's your turn to be in late position.
Bottom line, I would much rather play 76s in the cutoff than AJo UTG.