I have recently begun employing this strategy at 2/4 NL at both 6 and 10 max with a lot of success, under certain circumstances. I am much more passive on the flop and much more aggressive on the turn and river when it is a 3+-way hand when I am out of position (with position I can be much more aggressive). Heads up I'm still aggressive from the get-go.

The reasoning behind this passive play is that I cant really chase out draws with my top pair on the flop (and out of position), as I'm not that far ahead of them and their implied odds more than make up for the fact they are a bit behind statistically. Then of course theres the chance I'm paying off 2-pair or a set. So I wait until the turn to make my move, if no one else has, and take the pot down then. Suddenly, with only 1 card left any draws that havent hit arent looking so hot anymore! I do this mostly when the board has ace high so that I dont have to worry about overs hitting.