We took on a ex racehorse a few years ago. She was a grand daughter of Secretariat, too! Drop dead gorgeous! She need sooooo much work. We ended up long line lunging her everyday for hours. Very very sweet mare. Had never been in a herd but she learned real quick that our percheron mare was the boss. We pretty much copied exactly the same training schedule we were using on a yearling QH, with the exception of how long we did each exercise. We did find out the she loved to jump! Cribbed very badly on anything, which really sucked. Good part was she was only sucking air and not doing her teeth any damage. We did get her switched to a western treeless saddle but she was always happier with an English one. Ate, ate and ate! LOL...she needed so much more hay than our other kids! Our biggest problem was getting her calmed down if she ever got extremely excited!! She would than just need to run it off, which loose in the pasture or at the end of the line...and then she would remember what was going on and continue our lesson like nothing ever happened.
Raine