Strava elevation was inflated by 30-40% in a lot of segments (Newport Coast, Pelican Hills, Ridge Park, Vista Ridge, Santiago Canyon...) here in Orange County, South Cal. For example, Strava will give you two very different readings for the same loop clock- or counterclockwise. On the other hand, my Garmin 800 (with barometer) has been quite accurate. In the end, I don't mind taking the inflated strava reading though