If you put in at the dam go up past the camp ground to the second cove on the left there is a bunch of grass in there put them out close to the grass.Start about an hour before dark.Or a couple hours before daylight.
Big J I think you will for sure have better luck around cheatham dam than you did at percy preist. I want to fish around there it's just a drive for me and no one wants to go that far with me when we can go to old hickory instead. Good Luck!