Only decent Fish

Yesterday, Greg and I charted suspended Fish (LOADS OF THEM) suspended outside a weed line drop off .The fish I suspected as being Crappie possibly were half way down in 30 feet of water .I could not catch a one .I was using various plastic baits vertical Jigging .Any advice on catching suspended fish would be appreciated.
Tough day Fishing with Brother yesterday .Water Temp 76-78 degrees.Some very small Bass and Pickerel (about 6)in the pad pockets on wacky Worm, one on a spoon up on a ledge . One Decent 15.5" Bass on a Sluggo.Dink Bass on a Tiny Torpedo over a Flat near a drop off.A lost Perch Trolling a Bomber Crank bait in 12', and a Cutoff (Pickerel) on a Reaper Style plastic bait.