Whenever I see similar topic titles, my first thought is "Bet".

On the flop, hands that may call are 6x,54,87,58s,88-TT,A7, maybe some overcards...If they do have 6x, you're going to make more money betting all three streets than slowplaying.

Turn card sucks since all that will likely call now is 6x (which lost value). Double paired boards are no good for Flush or Straight draws. Still doesn't hurt to bet now and hope they make a huge mistake by continuing.