|My view from up there...|
I've been having a few discussions with people who are following this EPSM epistle . It's really interesting to see where symptoms cross over. I suspect people who focus on dressage notice a whole different set of problems than people in other riding disciplines. The people I've been talking with are primarily focusing on dressage and we tend to notice hind end (engine) problems. Tom has been about 2 months on the changed diet with added oil. Barb, my vet, said to allow 4 months for complete adaptation to the new diet. So far I'm pretty happy. Tom definitely has more "engine" and is much more able to move correctly. Yes, there have been good days and bad, just as I was told would happen, but in general there definitely is an improvement.
I've written to Dr. Eleanor Kellon, DVM, Equine Nutrition Specialist, and asked her some basic questions about how and when EPSM develops. She sent me a study (a PDF file) that's quite interesting and I'll share it if you email me and ask. I'm still trying to find time to really study this. There's a lot of science in there, but I think it has some of the answers I was looking for about the onset of the disease. I hope this might help some others too.