This may be a very basic question, but this thread has caused me to wonder about just what is in the different Calibrations vs. what is carried over in a Segment swap. My quick understanding is this: (Please help me understand if any of this is correct or makes sense.)
Under the Calibration Identifiers section:
OS - contains all the code to make the whatever (engine, transmission or both engine and transmission) run.
Calibration - Not sure, maybe just the cal's required for whatever sensors are connected to the ECM/PCM
Under the Segment section:
The Engine Calibration and Diagnostics, Transmission Calibration / Diagnostics all contains whatever is shown under those headings in EFI Live. Thus when / if we are able to swap segments, this implies that it is truely plug/play and the tables should play nicely (BIG assumption).
Further theroizing ... IF we had a Tech II, then there is a way to mix and match just about any of these cals, BUT you better know what your doing or else you just make a door stop and bricked your ECM / PCM. Guessing that this was what the others were talking about when HPT's was creating a custome OS for the TB's to support e-fans.