[JohnBHanson]

Yes you are correct.

Remember there are two layes of translation, the first is provided by the bios
and the second by the gotek hardware or xbeaver emulator.

By moving from xbeaver emulator to real hardware you are replacing the xbeaver translation with the gotek translation. Thus to use the same file format in both
cases these must match.

The first layer bios is the same because you are running the same code on the emulator and real hardware.

If you are using a different bios - such as changing using the native bios and
an MFB bios (either the xbeaver or the gemini one) - then it is possible that the
mapping changes between C and T as discussed above.

It is helpful to see these as seperate cases however what really matters is the combined translation effect.
You could change both at the same time in such a way that the combination is still correct, but that would be making life hard for yourself.