@Simon-James-Hancock I don't like using Tread either. I use a USB C to C cable directly from my Macbook Pro to my XT3 and use the free OpenMTP app to manually place my .gpx files in the /gpx folder. It's VERY fast and works 100% of the time.
If I do have the Tread app connected to my XT3, Tread (and the Explore website) will automatically synch with collections, routes and tracks that I manually put on the Garmin.
(Geek overload section follows)
Here's a screenshot of what the OpenMTP app looks like on my Macbook (this would look basically the same if I was using File Explorer on a PC) when I've copied my .gpx files into the \gpx folder before the XT3 has imported them into its internal memory.
The interesting thing that I've discovered is once the XT3 imports the .gpx files, it deletes the Track section from the file but leaves the route information (which in the 1.2 format contains a copy of the track) in the file and does not delete the file. The result of this is that even if you delete the route in the Garmin's internal memory a copy of it is still in the \gpx folder, and it can be imported again and again.
If you've manually uploaded a gpx file into the \gpx folder it's up to you to delete it manually which is fine with me. Tread skips the \gpx folder and loads the gpx information directly into the devices internal memory.
[image: 1785423905916-openmtp-screenshot.jpg]