I use sliding bobbers for pike fishing.
I will fish in the 15′ deep out from a weed bed that drops down to 60-70′.
And usally put on 9-10″ sucker minnows that attracts huge northerns that only bite on small panfish, perch, and tulibees. One pike around ten pounds I caught had two 8″ tulibees in it’s stomach. The pike hang in this area because of the available forage and sliding bobbers are the only way to go as larger pike don’t like warm water and will stay in the deeper 15’+ thats in there comfort zone.
Fun part about this, is the spot is located next to a popular resort and on a hot sunny day the murmaids are out sunning themselves, so you throw your sliding bobber out, put the rod in a rod holder and sit back, and watch your bobber and the murmaids and refresh yourself with a cold one!