Taking it down 2pr 5 times out of 6 is just fine. Put enough money in the pot, so if they call they are getting bad odds and you will make money in the long run. If no one calls, well, realize they don't want to tangle with you anymore, Mr. Big Stack EasyT.
The more I play, the more I realize how risky a slow play is, with almost any hand. Seems too often my flush in the blinds gets called down by the Ax-offsuit looking for his 7 outs. Too often one card in my straight gets paired on the river for someone else's boat. Too often my trips lose to that weird straight completion I wasn't even looking for. Quads? OK! Slowplay!