[matrix]

I limp AA/KK about 50% of the time *if* I'm in the SB and it's folded to me. I have limped AA very very very rarely if there is a bad LAG to my left who's on a blind when I'm in LP who is almost certain to raise. (then I call and b-3bet all-in on pretty much any flop)

99% of the time I raise preflop with Aces - you only need to start mixing up your play if you are playing aganist observant opponents who think on at least level 1 that you have played lots against already - as this is very rarely the case with micro stakes it's far better to raise AA/KK every time.