If you have seen me posting about segment swapping you know I don't go for it.

Let just look at the 512kb Gen III PCM calibrations. The OS determines the template used for the segments. Say the System segment. If GM made 1 parameter change the segment gets a new number. If you swap in a segment from say a Van you have now changed say 75 parameters that can cause issues that you will need to find a work around. If the segments are all created from the same template you just need to correct the parameters. You can setup a Vette to have a PTO if you want, but even if the PTO is not on the car you can make the car idle up like it would when the PTO is running.

For the most part all 0411 segments are created from the same group of templates. You have a few exceptions. Even if the OS’s are not the same and the segments are in different locations the segments are the same length and swappable. It makes it soooooo much easier in Hex when they are the same length. You take a 5 spd segment and a 80 and do a compare or even a 5 spd truck and a 6 spd vette and you will start to see how GM built the segments from the same templates