Great thread! Lots of good info here.

I am partial to the icerigger. . https://www.youtube.com/watch?v=NYFTmkv6-7M

Nothing below the water except line, and I get to fight the fish with a rod and reel with a good drag. I haven't taken BIG pike with them, but have caught plenty of pike < 7# and lots of panfish. Tether the rod (as someone here suggested - thanks!) to the rigger, and the rigger to something bigger than the hole. the other thing I like about them is that I will set up a dead stick with one as soon as I drill holes for the fishtrap. Then I can set it up, get the camera down, set up the heater and lantern, and get the jigging rod down. Not many false trips, unless I kick it. Hope to give it a try on lake trout next week.