My recent experience with wireless DCC sytems in OGauge was quite informative. Although DCC has basic standards, each manufacturer (there are many) has added some unique features to their product. Overall, there are a lot of very useful capabilities in the DCC system. The decoders I have tested had no problem handling two motors either in parallel or series. In overall capability, DCC is equivalent to any of the current OGauge track signal based systems.