Just adding three articles I did find quite interesting, for various reasons:
https://onlinelibrary.wiley.com/doi/full/10.1111/jcal.12323https://thestableoyster.wordpress.com/2016/11/19/building-automaticity-in-handwriting/I thought it was really interesting that the author noted the problem of how schools emphasize neatness and how this interferes with obtaining automaticity because the child focuses on the wrong thing and never learns what they fundamentally need. Our OT did always focus on how the pencil was held (ease the death grip), muscle control, flow, also size where bigger = better (middle child has books full of various types of patterns she practiced daily for the hand OT, and alphabets, etc).
https://learningspy.co.uk/writing/handwriting-matters/
