This is interesting. I'm posting 2 videos for comparison. The first was last August, struggling through Third level, test 3. It's painful for me to watch. Notice how disconnected everything behind the saddle is. He seems to be dragging his hindquarters along. I'm surprised the judge didn't mention the uneveness. Also notice how he halts with his hind legs way out, then steps even further back with the right hind. Ouch!
This second one is SO much better. This was filmed on Saturday (3/19/11). He hadn't been diagnosed with EPSM in August. He's been on the new diet since November and the change in his movement is pretty evident. He's much more connected. His hind legs look like they might belong to him and not to some horse following him! I will try to continue to videotape his progress. I haven't been able to see it either. Small mirrors only give you a little snapshot of what's happening at any given moment, and when he comes home in a couple of weeks we won't have a mirror at all! I've seen it on the lunge, but this helps to confirm for me REAL improvement.