I was reading the tricks for jigging up perch in the perch forum and I stumbled on a couple things that have always worked for me such as using eyes of previously caught fish.
However, nobody mentioned egg shells. I learned Both of these from two different 70+ year old timers on the ice one year.
I start saving crushed eggs shells in a coffee can around October. Then when I am jigging I drill about 6 holes at a clip, and put a pinch of egg shells in each one. I think the fall of the shells attract the fish to the area and when the jig is down there, their white color serves as a backdrop for the jig in the dark water, but I am only guessing. Some days this works great, because the hole without shells will not produce anything, but other days it makes no difference at all. Whatever?
Anyhow just tring to raise a little discussion and wondering if anyone else heard about this trick?