I don't even need to post anymore on this thread! lol. Everyone's said everything that I've said already!!
BUT I would say that injuries in dressage would be more than likely mouth injuries from SOME NOT ALL people being cruel to their mouths...plus, I don't believe in 2 bits in a horses mouth, but that's just me. So don't get all defensive, I was in a bit of a fluster when I wrote the first post, so I didn't include everything, but I don't believe you that your horse does canter pirouettes with no rider and stuff till you show me a video! lol!
(^^^For the person defending dressage on page 2 or 3)