40 + years ago there were rail splitting contests held in Penn., Virginia, West Va., Ohio, etc. Some of us used the historic technique, which was; start with these tools: commander, 3 dogwood gluts, steel socket splitting wedge with dogwood insert, and a poll ax. When the gun went off you started with the socket wedge driven into the large end (on an angle) by the commander, when the split opened you grabbed the gluts and commander and worked your way down the stick driving the gluts as you went, when the split opened all the way to the small end of the stick you grabbed the poll ax to cut any fibers that were still holding the split together. Once it was split completely in half you rolled the two halves flat side down and repeated the operation two more times until you had four same size quarters. there was one and two man rail splitting, one man is a bitch.