No. I use these attached to releases with big planer boards that have a mast system. Just spool on 5 colors to your backing and terminate with a 20 ft floro leader. Let all the colors into the water plus another 50 ft of backing line. These work great early season when you are fishing shallower water. Say 20 ft down over 40 fow. I’ll mostly use copper from now till Labor Day. If there is an upwelling and the fish are closer to the surface I’ll try a short core.