The big difference I see between reining and WP is that in WP to win your horse must move in a certain way and have a low head set. Getting better but that is still the norm.
With reiners it really makes no difference. You see high headed stoppers winning just as much as low headed stoppers. Same with the way they lope. Some lope with a high head set some with lower head sets. Some move faster then others. There is no one type that wins and the other looses. It is all about who has the best broke horse and which horse looks like it is doing the maneuvers the best and most correct according to the rules.
-I'm so busy... I don't know if I found a rope or lost my horse.
-An Armed Man is a Citizen an unarmed man is a subject.
-Where ever free speech is stifled Tyranny will reign.