[QUOTE=MysticOakRanch;8434177]
Several of the Euro registries do approve some Arabs and Anglo Arabs - even approved as breeding stallions. They can bring much more then just a pretty head - they are universally refining - you can breed an Arab to just about anything, and the result will be lighter, prettier, more elegant. They also have a good bone density and strong feet, short backs, etc. Don’t think of crazy halter Arabs - look to the “unspoilt” breed, and there is a lot to appreciate. Arabian blood is foundation blood in a lot of breeds!
But - having said that, US breeders screwed up a lot of the Arabs by breeding for halter. And when I see a halter bred Arab approved for breeding in a WB registry, I cringe internally…[/QUOTE]
A good Arabian can also contribute stamina, hardiness, structural balance, and high rideability. Unfortunately, the majority of the breed promotion in recent decades has focused on the halter and rail class segments of the breed so the reasons why Arabians were considered good outcrosses for reinforcement and improvement in various studbooks is not well appreciated.
For an interesting historical tidbit: I recently learned that the KWPN once accepted Arabians for inspection for breeding approval. The KWPN stallion, Olympus (foaled 1973), was sired by the 1956 Arabian, Noran. (more data here) Olympus was a GP dressage horse that represented the Netherlands with rider Dirk Jan Dekker in international competitions before being sold to Japan in 1986. Note that Noran also sired the Anglo-Arabian show jumper, Rex the Robber.