[Matt R.]

Well, I'm sure most of it is "known" intuitively by many of the very best players. But going by the number of people that didn't understand Gigabet's post a little while back, I thought it may be worth posting, what I thought, was a good explanation to what he was getting at. Anyway, I think Gig's old post gets into the recognition part of this. He talks about pot size, the value those chips in the pot give you over the rest of the field, and how bad of shape you will be in should you lose (this last part depends on blind size and stack sizes of the other players). This is clearly based more on a feel for the table and the current relative stack size situation. But, once you understand the variables involved (and why you MIGHT be able to make a -chip EV play), I don't think it's very hard at all to recognize a situation like this once you're in it.