I purchased the Arc primarily as a maintenance therapy to allow my competition hunter the best physical support I could possibly provide. In the past, he has receives annual hock injections and I wanted to see if we could either eliminate them altogether or extend the time between injections. While it”s too soon to tell on that matter, I do notice an improvement in his daily work. He appears to use his body more efficiently and his movement has noticeably improved. He seems to be more willing to use his body in a relaxed mind-set, so my evaluation of this is that he is more comfortable. Because of this, I am already noticing a better top line development.