I shoved with AA,KK,QQ,JJ,AK, AQ(s) and 10-10. That's it. Everything else, I threw away. the good thing about freerolls is that you WILL get paid off when you get monsters. People don't care since it is a 'freeroll' so you need to take advantage of that mentality.
I had two big wins. Both of them against the next biggest stack on the table. Super huge stack, so I cruised to the finish line (top 250 qualify).
You are either gonna have a monster stack or go broke. By the same token, I'd rather go broke than spend 4 hours playing tight and then get blinded out. That really sux. Happened to me so many time so i started messing around with other techniques. Real poker techniques don't work too well in the freerolls, so I'm trying to adjust.