Hey Blue,
I play the same 50/50 like you.
I think the key is your push/fold decisions (like the other people said) and blind steals if the blinds are high and only 7 or 6 players left.
The game is slowing down so much at this point. Typical bubble play.
Use the HUD and steal a lot of the 10/8, 8/7 players next to you.
Also be very tight with your shove calling range against most of the players.
At the end there are a lot of 54/30 or 45/2 players at the table.
Sit down and wait for the right spots.
Greetings,
Christian
P.S. My graph. But also tiny sample size.
http://imgur.com/a/UBES9qX