You guys are so helpful! I just had never even heard of dysgraphia before reading this forum, and DH didn't know either, but he seems to think good handwriting is overrated in the digital age. I see a lot of my DS9 in the characteristics, but not with a huge overwhelming certainty. I can see how he might get by, but that doesn't feel right. I think even if he doesn't have dysgraphia, he would benefit from some OT. He also has vision issues (extremely farsighted, plus bifocals, but has never had a developmental vision exam), but I don't think that explains this.
I started thinking about how he writes, and I will have to watch him to observe closer. There seems to be some automaticity, and spelling is good, he doesn't complain of pain (but he's quiet about stuff like that), but he's never liked handwriting, nor coloring things in. But his handwriting is worse than his sister, DS7. Some of his letters come from bottom, like a (which might look like an s or a loose g), his v and r look the same sometimes, and capitals and smalls are at different heights intermixed, spacing between letters and words is wide, hard to distinguish word space. He loves blank paper but then there's no clear baseline. And his written output is not equivalent to his verbal output. With 'neatness' and depth starting to count more in presentations, it's become apparent that the writing doesn't match his understanding.
We are having him evaluated -- waiting to be scheduled currently. I guess it was difficult to reconcile the idea that he's 9 (am I just expecting too much) and very artistic, with the fact that he says he can't write differently and gets frustrated.