We have a 7 shank 512 JD disk ripper without a drag. We do non chopped corn stubble in the fall and have gotten along just fine. Looking at a new 7 shank Landoll 2400 Weatherproofer I. Does any one have experience with them and how do you like them? It can have a 3 bar tine drag, chopper reel or both on the back. Any feed back would be appreciated.