Yeah actually I was going to say exactly what Ninja said. The secret with pushing is to have first in vigorish against a small number of players left to act behind you.

Just wait till the next hand, if everyone folds to you push it in with any two cards, doesn't even matter if you have a hand because if everyone folds then you more than double up with the blinds alone.

Also 500/1000 with a 1300 stack..you're goin like Broomcorn's uncle..You need to make a move way before this point, your M is less than 1. You're a poker wraith. Even if you double up your stack is not even in contention.