2. Waypoints created by ACA that mark the riding route.Waypoints are waypoints and riding routes are riding routes. There is no mixing between the two. The fact that some waypoints happen to be along the route does not make them part of the route. The routes in the GPX file do not have or mix with any waypoints. Instead, they have route points. See prior example.
As we reviewed earlier, one can strip the GPX file completely from the waypoints and still navigate the route.
I believe you have an older GPS-III+ unit that only recognizes waypoints but not routes. That should work as well, as I suggested earlier to separate routes & waypoints. Users can choose to use one or both.
The method for separating them depends on the tool you are using. Manual separation was quick and reliable. I often use online tools like GPSies.com & RideWithGPS.com. I think they all yield the same result.