Thank you for all of your kind words. At times I didn't feel like a good owner as he was suffering terribly, but you have to give them a chance to improve. I'm currently researching the Equine Motor Neuron Disease theory, I'm going to contact an expert at the Roslin Institute to discuss the symptoms he showed. From what I've read by the time the tremors start more than 30% the neurons have died and there was absolutely no hope of him going into remission.
You did the right thing in getting him PTS when you did, please don't think for one minute you weren't a good owner. Please keep in touch there are lots of nice people on here and I personally find it very good for advice etc
Well done on giving him a chance and then for ending his awful suffering. Huge hugs to you and sleep well sweet boy.
I hope that you can help with the research business.