The DD40AX I have is one of the older issues 5 or 6 years ago. It is nice to know the present issues do have back EMF. Thanks for the information Gentlemen.

I thought that was the case. I have hard wired decoders in other locos, but wanted to make sure before changing it. Thanks Mike C.
Nick

I have a Bachmann DD40AX that runs well but slows up hill and speeds up down hill. It doesn't seem to have BEMF or (cruise control) maintaining the speed of the motor whether the locomotive is traveling up, down or level on the track. It may be that I don't know how to set it with an NCE Power Pro DCC system. Any assistance will be appreciated. Thank you in advance.