Everything comes down to production costs and engineers who probably have never split a piece of wood in their lives. The fact that two of you have had the same problem would also indicate a lack of fielding testing prior to placing the article on the market.
I think we may have been asking too much of the splitter too. We never did get the stump split and had to leave it lay were it was.
Here's a daylight picture to give you a better idea of the whole building. The large blocks by the right corner of the building are pieces of a 14" length of the trunk. I had to cut it into 6 pieces so I could lift it into the truck. It took two tree guys to roll it out of the way. The rounds in the background were from the same tree. They will be split in the spring. The first 14 feet of the tree went to the sawmill. In the next few days I'll get what's under roof split, stacked and the splitter put away. Then I'll move the trailer in and be ready for the cold weather.
Our shed isn't quite that full. That is a good feeling though isn't it!