Strava Auto-Pause Doesn't Work

[Doyleyburger]

Incorrect. My 510 uploads to Garmin Connect and then auto-syncs to Strava. Aside from rounding to one decimal place, i.e. 18.42mph on Garmin and 18.4mph on Strava, it is exactly the same for me on all rides.

Yep same here. I haven't got a 510, just the basic 200 model but Iv found that apart from rounding to the decimal place, I haven't lost any time/speed once synced from garmin to Strava.