Quote Originally Posted by Jason
But, a pair of 3's isn't exactly a powerhouse hand to raise with either.
Except when your facing a limper and a preflop raise can put you heads up in position, anything playable will do because you don't need to hit-to-win with initiative.

This of course depends on whether or not the limper can fold postflop. If he won't let it go postflop then limping behind is fine since you'll get paid when you hit.