How to export GPX files to Zumo XT without recalculation

[Nick Carthew RouteXpert Senior]

Dear Garmin experts. I am asking this question on behalf of a fellow (frustrated) Garmin user from Italy called Enrico.
I would like to hear your suggestions for transferring GPX files generated by MyRoute to my Garmin Zumo XT. Unfortunately I can never be sure that the import as a route remains unchanged. Despite the waypoints placed, Zumo feels free to vary the route between one waypoint and the next according to its logic: therefore, regardless of the settings with which I created the route - often completely manually to pass through certain places without considering the fastest/shortest route. If, however, I view it as a track on the Garmin, it remains faithful to the original but I lose all the information relating to the route, including recalculation in the case of forced detours. In short, how can I be sure that the route built with MRA is read as is by the Zumo XT? (It's not just my problem; the whole group I'm part of has the same problem.)

[Travellexxie]

GPX1.2 recalculation set to off.

[Mzokk]

Or lots and lots of shaping points to pin the route if you want to use gpx 1.1

[Travellexxie]

@Mzokk exactly, but I prefer in this case the 1.2 and make the track visible.