Moved to $22: End game problems

[Kibby]

Over ~500 $11pp sngs I've achieved a 38% ITM and 18.5% ROI. Not bad I thought and once my bankroll hit 1K I figured why not give the 22s a shot. So I have a very small sample size so I might be getting ahead of myself but I do have some observations I was hoping the esteemed forum might lend a hand with.

First off I'm getting ITM ~34% and feeling good about my bubble play, etc... In some ways I feel more comfortable with it as I can identify those who are likely to fold to my allins more often etc... and I'm able to put the villians on ranges of hands more accurately. I've gone through my hand with SNGPT and my pushbotting/calling is very +EV with the only possible leak being that I make too many marginal pushes but they are still +EV.

The problem I'm having is playing once I get ITM. I'm getting hosed once its down to 3 players. The people I'm up against seem to be able to handle the standard aggression I've used at the 11s for a good amount of 1st place finishes. I pwn the final 3 at the 11s.

Any advise as to where I can start looking for leaks or general end game strategy?

Cheers,
Kibby