So almost as an experiment, I copied the starting sound TC from the Conform page Edit Audio Timecode dialog to the Audio Start TC metadata field for each master clip.
My delivery requirements asks for the Sound Reel and TC to be a flash burn on my editorial files.
When I turned on the Audio Timecode burn in, I get a TC display that starts from 00:00:00:00.
It seems like there is a lot of work to do in this area. I will report what I find.
Steve