I ride a Computrainer which requires calibration. Every time that I ride the CT and upload to STRAVA the warm up and Calibration is not included in the total kilometers because the actual event has not started until 15 minutes of Calibration is completed.
I estimate that on every event or ride 20% of the total does not register to STRAVA.
This adds up at the end of the year.
I have thought about a manual entry but have not done that because it shows as a separate activity in Strava. The warm up and calibration is part of the W/Out. Maybe I should just create a separate manually entered activity using a constant 6 km / warm up. This will boost my Veloviewer stats but WTH. Not a great solution but perhaps the best one.
Computrainer ceased to exist when ZWIFT was introduced so there is no one to contact. Racermate was the original company but I have no idea what they are doing. Even when there was someone the CS people were burn out weirdos.
The story goes that ZWIFT initially approached CT about working with CT but Racermate declined. We all know the story from there.