Dressagelvr you made me think. So I’ve done a search for a conformation photo of Valegro and found one. He’s got lovely conformation but his stifles are definitely 3-4" higher than his elbows.
I think we are so conditioned to seeing horses standing on sloping ground for their PR conformation photos it has skewed our ideas of what their conformation is actually like.
You can see Valegro’s conformation if you scroll down on this link.
http://www.horseandcountry.tv/news/2012/11/16/olympic-riders-launch-new-feed-balancer