I Am By No Means An Expert But I Can Tell You What Worked For Me At A Small City Lake Where The Gills Acted In A Similar Manor. We Tried Everything We Knew One Day And Gave Up And Started Trolling For Crappie. Wouldn't You Know It, We Started Catching The Larger Gills. Trolling Real Slow With Jigs. They Show Up On The Finder As A Single Fish, Or Maybe Two Suspended At About 7 Ft In About 18 Ft Of Water. This Was In July And Plenty Hot. This Doesn't Seem To Work As Well In Larger Impoundments.hey, Give It A Try. Hope It Helps.