Some of the LBL bays above Piney contain good numbers of redears. Saturday the 18th of May is the full moon and the peak time but there will still be some bedding activity then. Look for beds in 6-10 feet of water or deeper. If you have side scan, run along but off the banks toward the backs of coves looking for the deepest beds there. Lots of times redear beds will be in very small clusters and not in huge areas like bluegills. 3 tips on redears:
1. They are the most skittish fish in any lake. If you run in on top of them it's adios! Back off and make long casts to the areas of the beds.
2. You can't fish too slow for them. Use a drop shot rig or a popeye jig or bluegill bug tipped with a piece of worm or a wax worm. Let the bait hit the bottom and slowly creep it back to the boat. The best redear fisherman I ever knew used Zebco ZO2 reels (3.0/1 retrieve ratio) and you could barely see him turn the reel handle.
3. In my opinion you are wasting your time using hi-vis line for redears or big gills. Use either low-vis or clear line.
Good luck!