Yes my question is mostly about track assignment as I will run a mix of conventional legacy and tmcc. I have been told I can’t go above 9 assignments on the zw-c. At some point I would add DCS. I would like to continue to run trains on the mainlines while doing yard work. I could use the 6 handled assignments for running the mains. I do have a Tpc 400 that I could use as well for a steep grade While I have a legacy system I have never run it. Only zw-c for tmcc so I may not understand my options for assignments when I add legacy. I recall something like assign track 0 and then address by engine for both legacy and tmcc on those tracks but no conventional rerunning?
Oh my Greg! I was responding on my iPad and didn't even realize it was you!
If you don't have the manual to the ZW-C, here is a link... https://www.lionelsupport.com/...ents/72-2982-250.pdf TMCC operations start at page 10. It will explain how to assign the TR ID's. I have never done this with Legacy, but it should work the same way. Yes, assigning ID #0 resets the ZW to manual mode. The TMCC remote controls the ZW-C in command mode just fine for conventional running by remote. The Legacy system should work the same way.
The ZW-L manual talks about assigning addresses from 10 to 95 with Legacy version 1.4. This may work on the ZW-C as well. Not sure you will find much documentation on using Legacy with the ZW-C since they are from different eras.
One caution, some folks have had problems running the ZW-C with Legacy. There was a PIC microcontroller upgrade for the the ZW-C for Legacy operations. I don't think they are available anymore. It will depend on what version firmware is on the PIC in your ZW-C.
To your original question, yes, you can mix a ZW-C and ZW-L in the way you described and assign the ZW-L handles to the higher order IDs.
Your old pal George.