After watching that video of the guy using a tire to support the round he was splitting, I decided to give it a try. I used a 17" rear sportbike tire and man did it work great! Not only did it do an amazing job of keeping the splits from falling over, the tire also kept my axe blade from hitting the dirt. It also provided the axe some rebound (as the axe handle would compress the side of the tire on the down stroke) reducing the amount of effort to raise the axe each time. I would say my spitting efficiency has gone up 3 fold!