Nice sim, there's one thing missing though: splitting two sections at the same time. It do this all the time as it can almost double splitting speed when dealing with mid-size logs. Split the log in two halves, making sure to keep the halves close together. Rotate around the splitting block by about 60°, split again hitting both halves at the same time. Do this once more and you've split the log into 6 60° sections, a good size for stacking in the fireplace and also a good section size to be able to light a fire. I split between 5 m³ and 7 m³ of firewood per year which is enough to heat our house and cook our food, have been doing this for about 20 years now so I have some experience. The double-split is a good time saver.