Thanks so much for the information! Twinkie is so cute! I've been looking into workout programs to use for my horse. I barrel race and he's gotten out of shape this past winter. My problem is I live in Georgia and have red clay EVERYWHERE. So when it rains, usually about every afternoon in the summertime, I have to wait a while for the ground to get dry or else I will slip and slide everywhere. I don't have an arena yet and I don't have that many hilly places around my house. I have several fields that I can work in, however (again, when it isn't raining). Also, I am going to college AND working full-time. Do you think that riding 3 times a week would be doing any good? What kind of joint supplement do you use?