Fish on flats and in open water, but more productive off main-lake points. Slugs at night. Also try swimming a giant Kalin s Mogombo grub on a steady slow retrieve. Also fish in brightly lit beach areas with hard or sandy bottoms, if the area is surrounded by weedbeds. Fish the perimeter of the beach area where the weedlines break onto hard or sandy bottom.
Some bass follow baitfish into open water.
Move in on them when they are at there peak of activity level. Use buzzbaits, propbaits, jitterbugs, jittersticks, spinnerbaits, and pop-Rs. When action slows use spinnerbait and lift and drop short-arm. Overhanging trees cast a shadow between the edge of the weedline and the light beach area. You can shadow the fish area that has baitfish that offers an ambush zones and also look for docks, boathouses, rafts that cast a shadows in open water.