Too aggressive on the bubble?

[Barcalounger]

I made the jump to party $33 SNGs exactly 200 tourneys ago and I beleive that is the bare minimum to have halfway meaningful analysis. My breakdown for finishes is 36 first, 12 second, 13 third, and a rectum load of fourth and fifths. I'm still fairly noob at this, but that distribution doesn't look very normal to me. I seem to do very well on the bubble with taking advantage of other people's timidity, stealing the blinds and building my stack. So if I get called a few times and win some of the coin flips, I am in great position ITM to win the whole thing. But if I lose a couple of those coin flips suddenly I find myself out in fourth. I'm still in the learning phase of this game and I'm always looking to shore up bubble play, so I was wondering if it's possible to be TOO aggressive come bubble time. Is it worth the extra firsts to have all those OTM?