Those fish will follow the water up. They are shallow up in the new grass. Try to get way back in there. I would throw a spinnerbait or a chatterbait and a fluke type bait. When Truman Resivior flooded in 1993 I was having the same problems. The Lake was 28 feet above flood stage. We were catching fish out of peoples back yards. To launch you just backed down a road until you had enough water to get your boat off of the trailer.