I would say in big canola swaths that the STS does have a considerable advantage over the Gleaner, in that it is easily threshed and the STS has a bigger feederhouse. In tall straw (high trash),the STS likely has higher feeding capacity. However, when not cutting at ground level, the Gleaner is still the machine to beat in cereals. It will run circles around the STS in capacity and sample quality in this condition, and when the rotor is properly configured, the Gleaner can be made an excellent tough-crop combine.