[MAxx]

It's easiest, IMO, if you look at his ASB. Plug that number into PokerStove and see how your proposed hands do against that range. Assuming you have equal postflop skills, combined with position, anything you have a slight equity edge is a valid candidate for 3 balling. I'd prefer a small edge at least......eventhough you have position, I'd like a little cushion to mitigate a little variance as well as take into consideration the blinds will wake up occasionally.

Against somebody with a 40 ASB in the CO, I will 3 ball KJo for example, but not KTo.