[typically]

Personally I'm not so happy when I get five callers on AA, let alone AK, AQ. If you get that many callers this means you need to increase your standard open raise. Seriously, 5,6,7X raises will still typically get one or two callers. Much better to get the same or more $$ in with less opponents, no? If there are already limpers, you can bet they'll see your crazy overbet as a challenge and gladly look you up with their AJo or 77 or astonishingly worse garbage (which they will often subsequently fold to an overcard even if you miss your AK). This is called maximizing value. I don't mind pushing with TT,JJ and crazy raising with QQ either. This gets called more than enough to be +++EV.

Edit: I'd actually rather limp with AQ though.