AJs in CO-1 with 11xbb, late tourney, push?

[JFM]

First determine if you are redy to commit your stack on this hand. If I would play this hand (and I would) I mini-raise to capture the button as well as leaving me the option to fold to a push (probably would unless a mp-player does it because he usually as a midpair i these MTT:s).
If you are a new player you should push and let the others sweat a bit.
As for limping I never do it but since you have AJ suited it
isn´t "wrong" . And you can of course wait for a better spott/hand.