Nice new avatar dale.

You're right scgolfer. This is very, very hard to get away from.

So you're holding AKs heads up in the SB. You raise preflop, the dude calls. Flop is K64. You bet it big, and the guy calls. You're thinking, maybe he also has made his pair of kings, or maybe he thinks you're just taking a stab at it with high card ace and he's trying to snap off your bluff because he hit bottom pair. So you push back at him a little heavier on the turn. He calls. Crap. What does it mean? In your mind you'd think he's raising you with two pair. Why does he just call? So you put out another bet on the river, and he raises. You're pot comitted and officially screwed, because he's going to turn over 66.

Heads up can sometimes be a crap shoot. That's why with AKs, at least in SnG's late in the game, it is worth it to push preflop and hope your guy is not in the mood to play the coin flip game with his low PP. Particularly if you are the big stack.