I've been playing my big draws very aggressively lately, usually pushing on the flop if I think I am a statistical favorite by showdown. Here's an example:

I hold :As: :Qs: and raise preflop. I am called by 4 people, 1 to act before me and 3 after.

The flop comes :Jd: :Ts:.

The 1st player to act bets the pot. I put him on a J, probably AJ.

Even assuming that the remaining As are tainted for me, I believe I win if any spade, K, or Q shows up. Based on that, I'm a 54%-46% favorite.

How much of an edge do you guys look for in a cash game before putting all your money in the middle? Is no edge (even money) enough based on folding equity? Is a 5% edge enough?

And does this change based on your opponent's and your own stack sizes?