[pokeryogi]

Optimal play in a cash game is different than a tournament, even in winner take all. The main difference, the ability to rebuy in a cash game for your opponent as well as yourself. In a cash game you could rebuy and still bust em all. In a tournament, there is no such option. Once your out your always out. Pushing small edges, as you should in a cash game, is more dangerous in a tournament.
Still learning,
PY