See my response to Bruce's other thread here:
https://xoutpost.com/1125699-post4.html
It's been a while since I've used DIS, but keep in mind that in INPA, you're almost always dealing with "raw" sensor values. i.e. IIRC, the ride height sensor values you see in INPA aren't converted to any particular ride height measurement. DIS may perform that conversion for you to make it easier for the dealer tech to use, but INPA works at a lower level than that.
You really don't need to care what the sensor values in INPA show. You only care that your ride height is correct. You enter the difference between your current measured ride height and desired ride height, and use that number to calibrate in INPA. You'll end up with new, equally meaningless, sensor readings in INPA, but if you've done everything correctly, your ride height will now be where you want it.