Thank you so much Aeh, and your last point I think describes him pretty well. Polarbear, thanks for sharing your experience.
I am still perplexed on one thing - DS had vision issues and had vision therapy twice. He just completed a 5 month course in which he supposedly was "cured" of his convergence issue. Curiously, his visual perception skills were very, very high prior to the therapy with the exception of the visual spatial section, which went up to 99% after the therapy. Yet his visual motor coordination was in the 18 and 7th percentile according to the neuropsych. Although not a fast writer, he isn't excruciatingly slow and although sloppy, can produce neat writing. Does this mean he is expending a large amount of energy when doing writing activities to compensate?
Suevv, yes, they do appear to have similar issues, don't they? Thanks for chiming in!