wait, if you're playing 3 hands and a guy wongs into your table... keep playing 3 hands. Or 4 if possible. It's not polite (or smart) to wong into another counter's game, screw him.
Last counter I was at a table with... and this was a while ago, was I guess, a half-counter. He seemed to know a lot about the game, he played pretty tight bs, and his bets did tend to ramp up with the count. But, he bet spreads were HIGHLY erratic and seemed reckless, he seemed to legimitely hold some voodoo convictions about the Sacred Flow, and he made a couple of bonehead departure plays. So he was either operating on a level far, far, beyond me, or he learned to keep a running count an nothing else.