We have used a 2100 John Deere with spring loaded shanks, set backs and berm tuckers on lots of soybean stubble and  followed with JD 750, 1560 and 1590 style drills for winter wheat. Biggest issue is going back and grabbing a rock that the ripper finds. When the wheat is harvested you would never know the ripper had been used. 2100 is only ever used in the fall, NEVER in the spring.