Looks like it could handle Sepp Holzer Rye.
Alexis has been working full time on trying to make our simplified combine harvester work. This machine is important because it is much simpler than any combine harvester ever marketed. It could make small scale grain farming more economical for farmers all over the world. I (Alexis speaking) think it is our most important invention.
At LEF, we made a mistake this year in planting our wheat. We were having disease issues in the variety we were growing previously, so we decided to try a new variety. Unfortunately, we did not do adequate research on the new variety, and now we have a wheat crop that is four to six feet tall. Modern commercial wheat is mostly about 18 inches tall, which is much easier to harvest. This tall stuff at LEF has forced us to modify the intake on our prototype combine. I suppose the silver lining is that we now have a machine that can harvest grain of most any height. "