I've just completed the returns process and the Garmin 945 is ready to be posted all packaged up, reason being is the elevation gain is way off.. I did a track session with 315m gain and the great South Run (flat) 422m gain. Seeing these comments, not sure whether to go ahead, as watch is perfect otherwise and love everything about it. I Don't want to swap it for a refurb when I've taken such good care of my own watch and risk a second hand watch with other issues.