So I was playing a SnG today, with 4 players left we were on the exact bubble. I was 3rd place when a very splashy/loose/bad player to my right gave a full double up to the short stack. I immediately start thinking he's going to be tilted as he's made some really tilty plays a few times in this game. And as I assumed, he shoves in the SB while I barely cover in the BB with QJ of hearts (Blinds 100/200, his stack was ~2200 with mine being ~2400). No other players in the pot. Based on his play, I am VERY sure that I'm ahead of his range. I'm giving him Ax, Kx, Qx, Jx, T5+, 97+, every suited hand, like very near to 100% of hands. So the question is: If I feel I'm getting the correct odds and also feel like I have a skill edge against other players here (keeping in mind that the edge comes from having a better idea of push/fld ranges while short), how do I decide when I should put my stack at risk when we're still NOT in the money? He ended up having 98o with one heart, flopped 2 pair and I lost. How do I analyze the situation and consider edge passing, knowing that the blinds are moving fast? Do I take these marginal spots knowing I'm going to cripple myself a decent amount of the time and bubble the tournament knowing that when I win, the extra 5 (current) big blinds helps but doesn't break the game for me?