When Pushing is less -EV than Folding

[Jman28]

So, there are those times, when you are near the bubble, or on it, or ITM, or whatever, where you're in a tough spot.

You don't have a hand, or many chips, but you can't wait around forever, as you'll be blinded off (especially in an aggressive game).

My question is: How does one judge the EV of waiting around? I'll pose an example...

Stacks:
BB - 2000
SB - 3500
BTN - 4000
Hero - 950

Blinds are 100/200 and you are dealt 6 [img]/images/graemlins/spade.gif[/img], 4 [img]/images/graemlins/spade.gif[/img]

If we assume the SB and BTN will call with 44+, A6+, KJ+, and that the BB will call 22+, A2+, KT+, QJ, the ICM calculations show that pushing results in an EV difference of -.3% of the prize pool.

However, we'll be in the BB next hand and lose a decent chunk of our chips most of the time.

Do any of you have a rough way of calculating this? Or certain things that factor into decisions like these? Or a general guideline to abide by?

How about this specific example? Push? Fold?

Anything?

Thanks.