Stinkbait if you go to JC parks office i think they will give ya a map of they brush piles they sank.If not look for the white bouy's with a pic of a crappie on it.they marked some of the piles like that.Also look at your map and find Ligget cove on the north east end of the lake.As you enter that cove stay to the north bank out about 10-15 yards and look for the brush they have sank there as you go east down that bank with your electronics.
Other than that there are alot of laydowns along the deep banks you could try.And there is also brush sank in sail boat cove from north to south across the mouth.Hope this helps.And good luck:D