I'd like to add to the limp AA utg... that the other key, along with gear changing, is having the discipline postflop to let AA go when there are more players in the pot due to no raises preflop. It's a high risk high reward situation.
I've done that myself, you got to have the discipline to let it go.

You played it fine but don't limp reraise with AA if you aren't going to do it with other stuff
Thanks matey. So you won't reraise even if you know that villain will make outrageous raises with anything and that some players who have a read on villain might jump in as well with their own 3-bets?