I've never used it on my boat, but have been on Great Lakes charters, that used lead core with in-line planer boards. They let out the full core, as they called it, then attached the mono backing at the board. Believe they were trolling aroound 60 ft deep with that setup. They also had downriggers, and it was about even which worked best. He ran three planer boards on each side. four downriggers, and a dipsey diver on each side.