Slip bobbers are all I use. You can set them so they suspend the bait right over the cover. I would recommend a thill bobber. They have several sizes at both Bass Pro and Walmart. They also sell a string that can be slide directly over your line without rerigging. The string is yellow and is wrapped around a small piece of plastic. This yellow slip knot will easily cast through the eyes on your rod. I like to use two hooks below by bobber. In other words, the rig starts with a slip knot set at the desired depth you want to fish, next is the slip bobber, then a small split shot just above the hooks so that the bobber doesn't slide down on the bait when casting, next is a hook, about 1 foot down is the second hook and at the very end of the line is 1 or 2 split shot. If the rig drifts into the rocks or brush the split shot will usually get hung first. Pull hard and the split shot will slide off the end of the line and you are free. You don't usually loose your whole rig. The reason for two hooks...well you just never know what a cat is going to want. I may put a large live bait on the bottom hook for flatheads and then a hunk of liver on the upper hook for channels. I also combo with worms, minnows, bluegill...etc. A regular buffet for them lol. Good luck and let me know if you have any more questions.