[iggymcfly]

First off, no you don't have to raise AAxx in EP every time. I almost never do in a FR game. It telegraphs your hand and doesn't necessarily make the pot bigger as if there are multiple limps and then a raise, the pot would be a lot bigger than if you just raised upfront and got called.

This is a terrible example of raising with AAxx "getting you in trouble" though. You got most of your money in very good and the only reason that CO even had money left was that you failed to bet the whole pot on the flop. I think betting 2/3 pot here actually looks more suspicious anyway so just hit the pot hard and get as many chips in as you can. Oh, I'd push the river too. You get called by two pair or a lower set more often than you induce a bluff.