Pretty good question
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It is going to be situationally independent, depending on the types of players at your table, avg stack size, number of shortstacked players, etc. Generally speaking as the bubble approaches play tightens up because people really want to "make the money".
If you have an above avg stack I think its a great time to pick up the aggression factor and victimize the small stacks. Notice I said small stacks, don't get carried away and get into a confrontation with anyone who has a stack that can hurt you.
Jason
