Do you normally play the Turbos, or the Speeds?
I've played quite a lot on both and rarely play at normal speeds.
The play at these SNG's, I find to be very poor, All in on k10, 55 etc first hand, seen that a few times today.
The way I play, is just to stay out of the action for the first few levels, of course if a premium hand comes my way I'll play it, but otherwise im staying out of the action. This is a prime oppertunity to see who's good and who's not this will be vital for the bubble. Also do you have Sit & Go wizard?
(google it if you dont, free trial really has helped my bubble play)
When the blinds reach 100/200 it's time for push shove poker.
Here If you have folded all hands up to this point, you would have less than 10 BB and it's time for Push fold poker. You've got to make some steals from the SB and Button here, the blinds are gonna destroy your stack if you dont. Your notes will be key here, the better players who know sng strategy will be more likely to respect you're shoves, where as the weaker players, may call you with anything. Had a player call my shove with 102o earlier.
Sorry that is a bit vague and basic, but hope it helps a bit.