I run my RailPro locomotives on my DCC track all the time with no problems. Since all you are doing is taking the 14V from the track, you can still use your HC and run all day long. Why mess around with clunky old DCC addressing? Someday, when I get all my older DCC locomotive switched over to RailPro, I will consider dropping the DCC Boosters and Controllers and such.
Geoff