Yup, I have spent time in both! Started with Massey til the 510, and still feel they made the best conventional combine of anyone. Switched to AF, and have spent enough time in the green ones to know what they are. They always have this way of sticking levers and controls in the most inconvenient places; combine or tractor. Spent enough time in a 9500 then later a 9510 Sidehill, so I know enough about the green ones and might add, have some respect for their walker machines. No, I don't know alot about the STS, (yet) but first impressions are lasting, and the year the thing came out, it really sucked in corn and beans. I mean they had spotters all over the field with FM 2-ways (This is kindof Clintonian (cheating_dishonest)) telling the guy in the cab what to do and still had poor samples_yields. That bites big time. It (STS) also steered way clear of a weedy patch of beans. The AF, MF, TR, and Cat went right through it. And as for the patents, I clearly mis-spoke "renewed" for "relisted" which is what is done when changes, even small ones, are made to a patent. I am man enough to mention a mistake, unlike many ego-maniacal people on here. You want to get into a pi$$ing contest over this, I have every AF patent to date, and many of them were in fact relisted.This protects the inventor from fools like JD trying to copy the stuff. The first AF design had straight impellers and the rotor was an open design. No more than a conventional cylinder turned sideways. And yes, many of the early designs were inspired by then Sperry New Holland and the twin rotor concept, both of which are fine designs. The STS is inspired by what I don't know. All the other designs use gravity, and the trash to aid in threashing and separating, where the STS works against these natural things, by "fluffing" the crop into that wierd 3 stage thing. Couple that with the fact that a Deere engineer couldn't even answer simple questions when asked about the design. If you guys like them, that is great!! That inspires competition, and maybe the others will be even better the next time. And if I may quote the king of talk radio, Rush H. limbaugh III who is 99.9% right, (100% in my book) "You are intitled to be wrong!" Good day! Oh and when you point your finger at me, you have 3 pointing back at yourself. This is in regards to staying on the AF board. I spend alot of time there, and find it interesting that I see alot of you Deere folks over there doing the same thing you accuse me of doing here. Guess that makes you and tj and others hypocrites!! And if you are up to the challange or even know what it is, I'd like to know what an STS would do in Amaranth! My uncle is a smart and wise man. Maybe you should spend some more time with yours. You might learn something about combines.