Quite hard spot, but I agree with the shove. Of course, when you get called, the chances of you being dominated is quite big. But you will not be called too often.
One thing is for sure: you don't necessarily need to worry about the short stack, but the big stack that will call you more frequently than the short one.
A reasonable range for the big stack to call you is 99+, AJs+, AQo+, KQs maybe? If I am the big stack on SB, I think I call only you with these hands, because in theory everybody will play less hands in the bubble. Depending on the player, hands like 88, 77, AJo, might be added to this range.
Against this range you have only 32% of
equity, but this range only represents 6.6% to 7.5% of the hands (assuming it is correct).
This range is much more tighter for the player on BB.
So I think shoving is good, because as the short stack, you can't be just thinking about surviving the bubble. Of couse, you need to be tighter and take good decisions, but these decisions can not be controlled by fear of busting. If you don't steal blinds too, you will be much shorter some time soon.
Consider this example of mine: last weekend I was on the bubble of the $4.5K
pokerstars Community Freeroll, and I had about 21 BBs on the small blind. I had AKo. Player on MP (with 22 BBs) raised to 2.5 BB, and a big stack (about 70 BBs) called on the button, and I thought, "Well, this might be a great spot for a squeeze, because there are about 7.5 BBs on the pot, this would increase my stack by almost 40%. And when I get called, I still have a lot of equity."
Then I moved all-in. As I thought, MP folded, but BU called showing 88. I lost the flip, and got busted.
Well, this was in a big freeroll, ok, but I would have proceeded the exact same way in any paid tournament.
I knew that MP was going to fold all non-premium hands, and BU was going to call a lot of times with hands like AQ, AJ, KQ, and small pocket pairs like 77-TT. My range has not only AK, but also all premium hands (JJ+).
Ok, we busted, but a lot of times we would have a great stack. If we play a few tournaments, this might hurt, but as much more volume we make, the chances of running deep is bigger.
I hope it makes sense, if someone spot an error on my post, please tell me, I would be grateful.