[MrMon]

Pokertracker often is not all that useful for SNGs BUT if you can get it to give you data during a game, it can prove VERY valuable. Or even if you have limited data on an opponent from previous matchups, as little as 20-30 hands, it can prove quite handy.

Depending on where you play, try to get the Tourney Time stats to load on your opponents. Then, during the game, if you can, load additional info on them. (This is very site dependent. You figure it out.) Take a look at how frequently they play, what hands, do they checkraise, aggression factors, etc. Find the right key to some players, and that tough nut just cracks open.

Outside of live stats, using the replay of tourneys or key hands can sometimes be enlightening, especially when you see opponents cards from the beginning of a hand. Surprisingly, the game looks much different when you can see it develop from that perspective. Try replaying a tourney or two with known hole cards revealed. You'll learn a lot about your opponents and your own play.