Dan, it is great. It is pretty hard to take LF on the ride. I had difficulty even with an RZ67 many years ago because you are horsing it up and down a ladder on the side of the train. You can easily use LF in the start area where I have seen three Shay engined trains line up for a drag race. Wait for it.
Some times they allow photographers in the restoration area which is really neat if you don't mind long exposures. It is mighty beautiful up on the mountain top.
There is a terribly shaky U-tube of the train’s arrival in Cass http://www.youtube.com/watch?v=DYoNRNSQQJM
Main site for the engines http://www.cassrailroad.com/locos.html