Dual recording data - syncing?

My Zwift rides are synced to Strava, TP & Garmin Connect, as standard.

How do you guys sync or deal with your secondary ride data from a 2nd power source connected to a head unit (Garmin Edge) as in my case? What do you do with it and how do you sync it?


I think it might be best to explain why you are using a secondary power source as the how might be different for each use case.

the secondary uploads to garmin connect automatically (edge 830) and then i just export the fit file from there and upload it to zwiftpower, that seems to be the quickest and easiest way to do it that i know of. if you have an old unit like a 510 which doesn’t have wifi capability then you can just manually grab the file from it via usb