My choices for bait are cut carp for blue cats, liver for channel cats, and live bait for flat heads.
I use weights on all my jugs. I normally have 3 hooks for jug.
Set your jugs where there is enough slack for the jug to float toward the bank so that the line hangs at an angle. If you drop a 40 ft line in 30 ft of water upwind from the bank, the breeze will push the jug(away from the weight)toward land allowing the line to be at an angle toward the bank. This allows your drops to hang free from the main line. It also allows the baits to hang over different depths of water.