Ok I can see that working with a preflop raise.

However, most of the people at the lower limits (25$ NLHE at party) I've found will call you down with almost any pair.

Higher limits I can see this working but I was speaking from my experience.
I will do this occasionaly when a tourny gets shorthanded but a full table someone will most likely have hit something,

I flopped top two pair AQ after I raised 5xBB preflop and got called by a guy with pocket 2's. Granted he hit his two on the river (bastard) but Id love to play that hand with him a few hundred more times.

I can see how bluffing early after a preflop raise would help, but i think depending on the players its easy to get called down.