Been looking around for a train sim (pc), & trainz 12 looks like a good one. I had MST when it first came out, & remember the cars didn't roll very far on the flat if they were cut off from the engine in motion. Is the physics for trainz 12 more accurate to real cars? Can a controller axis be mapped to a flight sim throttle? I heard some train sims only use the RailDriver controller, KB, & mouse. Thanks for any help.