The default chain files will not be uploaded. Mth also told me that some upgrade kits got out with no chain files loaded. Which may explain why I had no head light when I first started the engine before loading the sound software.
MTH assumes that the user will not be messing with the chain files. The techs check to see if the chain file is loaded and proper. If not the put in the proper chain file. This is for a factory authorized upgrade center. They use a test station to determine this.
If you're interested I can provide the chain files Mth gave me. Hope this help more.
Regards,
Mike