By 1994 John Deere was committed to the design and development of their own rotary combines; their new STS Single Tine Separation system combines were slated for introduction in 1998. The STS was an evolutionary design based on their existing CTS Cylinder Tine Separation technology. JD probably realized it would be best to find a way to remove this new, threatening combine (the Bi-Rotor) from their lucrative and favorite market in order to maintain their marketing plans for the STS.