I use a simple set up, dacron, fire line, or 12lbs mono
(no wire leader) Good sharp bait hooks, I too like the circle hooks, 1/4 oz split shoot about 8 to 10 inches above the hook.... For bait, I like creek chubs if i can find them, if not large golden roaches work well too. I hook them behind the dorsal fin...Also remember that Northern come
up to their prey, so don't fish on the bottom. If I am fishing in 15 fow I will Put the bait down about 10 to 7 fow. Just one mans opinion... Good luck