Garmin 305 - elevation query
Got a new Garmin 305 and went for a 17k run. Elevation gain in GarminConnect was 198m (elevation loss 208m = loop to bottom of car park), however, in Garmin Training Centre it was 384m ascent (and similar a 398 decsent as I did a loop). Both times info came straight from device download. Any reason why the Grmin Connect would show alsmost twice as much??