We have been doing well in 60 FOW trolling west to the cooling towers and back. All we use is cranks and spoons. Are you marking anything? Try running your spreads from 15 feet down to the bottom and see what works. Sometimes in this hot clear weather the walleyes are up high feeding on baitfish and you won’t mark them. Look over the side of the boat for baitfish. The walleye pros call them ghost fish. Cover the water column and see what works. I have caught a few 27 inchers running husky jerks with no weight 175 feet back which takes them down to about 17 foot at about 2.3-.5 MPH