Hello everyone, I am faced with a dilemma that hopefully someone can help me with. I have a humpyard and want to simulate the actual master retarder process of slowing the cars down before they hit the secondary retarders, but still having enough momentum to make it to the classification yard. Does anyone have any ideas on how to do this? I looked into the idea of using Kadee electric magnets, but people have told me that the car's weight would probably not slow it down any. I also was interested in using the DelAire compression system for simulating track retarders, but even DelAire was less than helpful with the idea and process. Any help is greatly appreciated. Thanks in advance.