Canyon, if you look up Ole Dogz Fish Bait company online you will find it there. There is even a video of them showing you how to rig it up, they are rigging it up for a trot line, but you rig it the same way for a jug line. Yes, the cakes are a little big, I just cut the corners off and make them the size I need depending on the mouth gap of the fish I am targeting. These cakes have a hole in the center to thread your line and hook thru. You can also buy cotton seed meal and make your own and size you want, I just cut mine myself cause I find it easier than having to mix it up.
Give it a try, might surprise you. Besides those carp are pretty smart and will avoid you like the plague after you shoot one or two of em, they will haul ass as soon as they see or hear you coming. I got them to come to feed for about a week, letting eat all they wanted, then I shot a couple and that was all she wrote, after that, as soon as they heard or saw me, they were gone.
Gregg