Limit Tournament Strategy

[uvickid]

I'm playing in my first semi-major live limit tournament in a couple of weeks and i'm trying to solidify a strategy. My style of play can very but I understand the necessity to play extremely tight in the first several levels so a.) the bozos can chip away at each others stacks and b.) a pot earned in level one probably won't cover a round of blinds in level 3. My question for everyone is at what level (and at what chip stack), if at all, would it be all right to start playing marginal draw hands and overcards like JToffsuit, AQoff, KToff??

I just don't see any value in playing JT (suited or not) in the early rounds because it can get you in trouble...

Any additional comments or suggestions on limit tournament strategy would be much appreciated...