To take this in a slightly different direction - Witezarif was one of the top endurance horses of all time, with three Tevis wins and numerous other top placings. Here is a description that was posted by someone on ridecamp that I found very interesting:
[I]"I was involved in bringing Dr. Deb Bennett to a meeting and clinic at the local Arabian Horse Club in Bishop, Cal. I picked her up in Reno and she said that there would be a two hour wait as her Demo bones had ended up on another plane. Took her out for tacos and then asked her to look at a gelding that I was interested in buying south of Reno.
Got to the pasture and had received the O.K. to catch the horse and show him to her. I trotted him out and she immediately said that I should buy the horse now as he was worth a king’s ransom. I then showed her the record of the horse that Donna Fitzgerald had campaigned, his name was Witezarif and he had been retired for at least a year. Dr. Bennett then took multiple pictures of him and stated that she had never seen a horse that moved with such ease."[/I]
I was privileged to get to ride him once - he was used in a dude string at south Lake Tahoe while not competing. Look at the pictures and his pedigree. Even in the stills below you can see how he moves. So important!
http://www.allbreedpedigree.com/witezarif
http://www.arabianbreeders.net/Forums/Pictures-t1117.html&st=10
(and for a real kick, scroll down to post #17 on the arabianbreeders.net page)