I do the same. But then I also backup the entire file system, as it was a pain to set up everything, bike profiles, pages etc, when the whole device got corrupted.
I have also lost all data points in a single ride 3 different times, as have many others.https://forums.garmin.com/showthread.ph ... the-middle
Only start and a few points before stop were recorded, but averages and totals etc were all correct. So now I run iPhone Strava as a backup on longer rides - a big hassle.
Fortunately, f/w 3.10 is out now, which fixes the deleted files problem. Hopefully it also fixes recording reliability, and other file system corruption issues.