No diagnosis, but good odds for me and perhaps slightly lower odds for DS. It would be interesting to know some better categorical root diagnoses. Like lack of automaticity versus hand eye control versus mirror neuron dysfunction versus ?
The best thing I did for myself and writing is dropping lower case letters some time in HS. The upper case letter forms are much easier to remember and distinguish versus the mass of same basic instruction lower case. Seriously: a, b, d, p, q, g,(sometimes also h, r, j, e, c get squashed in); line and a curve, got it. Where do you start the circle, do you do the line before the circle, is it always a circle or is it sometimes more of a c? can I retrace the lines or do I have to pick-up the pencil each time?... etc.
