Ok I think I have the settings for the 1030 (which should also be similar for the 820 and 520 plus and the Fenix5 Plus series as well, basically anything Garmin that has maps). With courses it seems Garmin might override the routing (and thus some or all of the course points) so to fix this we need to change the way it does course routing (note you will need to change it back when you aren't using bbs or potentially save this setting for racing activity type). We are working on getting this in an FAQ but figured I would try to help here first.
The settings below have been tested on the 1030 and the Fenix5 Plus (unfortunately on the non plus versions of the Fenix there is no option to turn "Turn Guidance" off so prepare for lots of beeps 100 meters before a turn). We have also recently added the ability to reduce the number of Segments in advanced settings so the model is still run off the large number but the Intervals passed to the head unit will be reduced to the desired number with the associated weighted power targets.
- Navigation Routing Options (I would turn off Sharp Bend)
Go into Routing Options
Course Options (Some people like course warnings (100 meters before a course point) but I tend to turn them off).
Now the next issue we sometimes see is that on multi loop courses the system picks up the second loop (even though it's the first loop). 90% of the time I say to always ignore the navigate to start button but in the case of an multi loop course it can be beneficial to creat a course that starts a bit farther down the road from the transition and choose to navigate to start. This will help Garmin align the course to the correct starting points.
And finally when racing you should see something like this.
Example of the Reduced Intervals mentioned above.
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Founder: BestBikeSplit
Amazonian
