I do quite a bit of catfishing. My favorite rig is the classic bottom dead line slip weight rig. I use a slip egg sinker in front of a bead then tie on a steel leader with a circle hook on the end. Also I use a spring loaded bobber when I am fishing with live bait. Everywhere I go I see people using the pencil type slip bobbers. These bobbers usually have another bobber attached I guess to control live bait from tangling the line. I want to know in detail how these are rigged up. My main question is how do you find your depth. How do you apply bobber stoppers? Catch my drift? I want to become a more versatile catfisherman. I have been using the bobber with a brain as well. I am not sure if any of you have seen this.