Good looking unit. One of JD's best combines. We do garden peas with our cts. Run at 6 to 8 kms per hour with a 922f head. If your concave has spring loaded inserts at the back of it, take them out and put as much straw as possible through to make straw rub on straw. Keep the cylinder speed down and clearance enough to thresh well without cracking. And lots of blast. Can't help with the lentils or Durum. Never done those crops before. There isn't much a CTS can't handle if you set them up right. Where do you farm?