Jim right on with the water clarity to light strikes. My buddy and I talked about switching over to leadcore on a couple rods. I am only running a 7 ft lead on the dipsys. But was running 130 lead on the riggers. Troll speed is 1.8-2.3. Flat water no current is 2.1. My grandparents who used to fish exclusively for muskies and monster northerns in the 1000 islands swore by leadcore line. And they caught some of the biggest fish on the island over the years.