Breakthrough!
After downloading the free trial of Holdem Resources, I created my own push/call/overcall charts for the different spots in the STT producing a spreadsheet with probably too many ranges on it. Playing with the Nash ranges with small adjustments based on opponent ranges I have started to make more of a profit in the 50c 9-man's.
The main things its taught me are how tight you should be calling around the bubble and how wide you can shove in the SB on the bubble (exploiting risk premium). Avoiding big pot situations early in the tournament is helping me get to a lot of bubbles where I know my opponents will be making their most mistakes and giving up $ev.
Bankroll currently: $118.89
Thinking of moving up to the $1.50s, going to have a look at the effect of the antes on my ranges.