i tried twice last year and maybe its a fluke but for shallow lakes go where electronics dont help, the shoreline.
I found a big rock point with a half sandbar/half mud and started casting small walleye spinners with a berkley power minnow(use a small keel tyoe weight so you can cast).
I didnt hammer them and it was tough to get a perfect cast but I was getting crazy bites in 1-2 fow.
I caught limits twice but it was a weird way to fish.
I had the idea from river walleye cause they will push the shore to gorge on shiners.
Maybe, at least in small lakes, crappie do the same?