I have both the 'Motorman' ans 'ACS' systems. The Motorman requires you to modify the bodies (cutting bits out) to enable the fitting of the battery and receiver. You also have fragile wires between two of the carriages. The operation takes time to learn and isn't great. Seems like an after thought and is a lot of messing around.
The ACS on the other hand is much cleaner, no exposed wires, a simpler and more robust design. The operation is much better too with more graduations in speed and more stable running. I've not tested it but I assume it's a digital system where each receiver is tied to each transmitter so the more controllers you have the more trains can be controlled. If this is not the case it may be possible to make up a longer train using more ACS units which will take commands from one controller.
The ACS on the other hand is much cleaner, no exposed wires, a simpler and more robust design. The operation is much better too with more graduations in speed and more stable running. I've not tested it but I assume it's a digital system where each receiver is tied to each transmitter so the more controllers you have the more trains can be controlled. If this is not the case it may be possible to make up a longer train using more ACS units which will take commands from one controller.
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