I knew there had to be a better way than trying to stand a round on it's end, give it whack with the mall and have the pieces fall off the round it was sitting on. So I built a chopping block, it is made form scrap lumber with a plywood top and bottom. I drilled 4 holes in the tire and installed 4 screws that stick up about an inch to hold the tire in place, I put 3 pieces of wood inside the tire to give it a bit more height. The tire is easily removable in case I have some large rounds. I just tried it out and works very well, Its nice and solid and the tire holds the splits in place so they don't fall off. It makes for easier splitting.