Wow, that is insane! Couldn't he have used some gears instead of ALL those joints?
BTW, I had the other style CV joint in mind, I was thinking of this kind in order to allow the train to disconnect easier.
However, the point made about torque transferred to the engine is a very good one, I am thinking about modifying the engine and making it longer and the tender longer and taller to better accommodate all the parts I want to get in there. I will likely have to just install the motor(s) in the engine itself and live with it.
I will be pulling three additional cars after the complete EN train and I want it to be able to scoot around pretty good.