Hi Brendan,
if you need to find out when the shift happened have a look at the following Webinar from 42:30.
https://register.gotowebinar.com/recording/8590671671074275083Don't dragn drop the T02 file but use Home-Import and find the file manually. In the bottom, in the settings set "Force Kinematics" to Yes.
In the project settings you also have to set the following.
That way you should see a trajectory polyline and be able to determine when the shift happened. In the main baseline processing project you'll have to mask that time frame accordingly, as per the Webinar video.