I am going to use slip bobbers on a local lake for flatheads. As I understand it I should have an egg sinker below the bobber. What size? Will be using live bluegills. I have purchased weighted bobbers. Is this correct, because today I saw large unweighted slip bobbers. How do you use these. One last thing, I have heard of a rig that uses a small round bobber that is used to keep your bait off the bottom, while your weight is anchored to the bottom. Anyone use this. What type of situation? Thanks ahead for any replies. The BOC always comes through.