I finally purchased all the Power Functions components I needed to motorize and light a duel Horizon Express set. I replaced the *lead* trucks in each power car with motors, one running off a long extension cord, all one battery box, one IR receiver. So far its just derail city. I have jacobs bogies under all the coaches, and I primarily derail on the coaches end trucks (that connect to the power car), but half as much as that the motors come off the rails. Is there a "best" set up that people have found, or some ideas that would help this train actually run? I just finished reading every topic I could find via the search feature and it seems that the derailing is mentioned, but not really solved. Thanks everyone.