get a bait dealers net... get ready with it then cut your fishing lights after the shad have schooled around the light. Those shad will get disoriented and flutter on top of the water.. Just make a big S in the water with net and you have 100s. keep the water moving in your bucket to keep them longer but dead ones work great too.
Cut the lights back on right away. even while you are scooping them up... In an instant the shad are back and the fish still bite... I get plenty of bites before the light is back on... I guess when the shad go nuts the crappie have to get em..