[sweetjazz]

Dave, what you're missing is that you win 0.5 BB/hand with A2xx, that amount is not even distributed over your opponent's range. In fact, if your opponent's have two hands that they would fold to a blind steal, you're likely to make more than 0.5 BB on average for that particular deal of the cards. Coversely, those times one your opponent has a legimiately playable hand in the blind (or worse on the button), you'll win less than 0.5 BB on average.

That's not to say there is not an argument to be made for raising before the flop. But you can't simply use average data and use that to decide when to raise before the flop. You have to consider what hands will be folding to a raise (and whether you want them to), how much equity edge you will have when called, whether your hand plays better with the pot bigger or smaller, whether it plays better with or without the initiative.