Cub Cadet Pro Z line and other questions
 

Warning: Long posts with numerous questions. But this site is the best for help.
I was looking at the new Cub Cadet Pro Z line of zero turn mowers (ZTR) and was learning the transmission on ZTR's are extremely important. These machines are amazing and are built to last. The metal used is so thick; it almost seems like an overkill. The Pro Z 100 has a Hydro Gear ZT 3400. It comes with a Kohler Confidant engine which I have no knowledge of. If I were to get this, I would get it with the FX Kawasaki engine. Is Kohler's new engine (Confidant) any good? Is it better than the Courage but not as good as the Command? What is different about this engine compared to the Courage and the Command?
While doing research, I found comparing the different transmissions in them as well as the garden tractors to be very interesting. There is a lot of data on the Internet, but there also is no exact data either like actual torque ratings. I was reading the transmission in the 2000 series Cub Cadet has a Hydro Gear BDU 10L. I was reading it is similar in strength to the Tuff Torque 58 that John Deere puts in the x300 line but less powerful than the Tuff Torque 72 in the x500 line. Since I have no experience in John Deere products and know nothing about transmissions other than torque ratings, does anyone have information on this matter. Is Hydro Gear a good transmission? What is the actual foot pounds of torque for the BDU 10L? Is it as good a transmission as the Tuff Torque and what are the differences?