Dave,
As a veteran diagnosed with PLS, I want to thank you for your letter writing efforts to get PLS included with the ALS presumption.
I, too, doubt the rarity of the disease myself after seeing so many with the diagnosis online. But, as you pointed out and as you, yourself, have experienced, the diagnosis of PLS has a tendency to change to ALS. This is what makes the disease a little more rare. Not all who start out with the PLS tag keep it.
I still doubt as to if whether or not I even have a motor neuron disease at all. I'd like to think what I really have is Cramp Fasciculation Syndrome. I've offered that suggestion to each of the 3 neuros that have examined me but they seem to just want to pooh-pooh the idea. Time will tell...
Anyway, thanks again for your efforts. I'm holding off with submitting any kind of claim to the VA for now.
Kim