I have ridden an arab mare that
racked! (pure arab, kemosabi grandaughter) She wouldn't hold
it for long, but I knew I was feeling a rack. She belonged to a friend
that I was riding with, so I mentioned it.. she said "Yes, she racks. I
used to ride her with a walking horse and she picked it up."
Personally, I didn't think it possible, but she definately was racking.
