When I download my Garmin into "garmin training" on my laptop I get drastically different elevation change numbers than I do when I upload the data into the Garmin Connect website, for instance on my 16m run this morning these are my stats in feet:
Per Garmin Trainer
Total Ascent -2060
Total Descent -2019
Per Garmin Connect
Elevation Gain -808
Elevation Loss -776
Clearly the metric is also labeled different, are these different measures? I've always considered the elevation changes as the least accurate of garmin measures, but I figure they are generally accurate. But this discrepancy is consistent across runs. So letsrunners, what is the explanation? Which one should I use?