DS2 has hypermobility in his hands and wrists (as well as ASD & dyspraxia). He grips the pen so hard that if he writes with a biro, it goes through the paper. His writing doesn't stay on the line but travels above and below it. His letters are regular but quite squashed-looking.
He had many years of handwriting intervention - eventually his primary school just taught him to touch type. In Y9 the teachers started complaining about not being able to mark his work; we got a full OT report which suggested rest breaks, sloping writing surface, laptop use.
He started using a laptop at the end of Y9 but it was too heavy for him to carry around between lessons (hypermobility) so he carried on writing in school and typed homework.
A new English teacher at the beginning of Y11 asked for a laptop to be delivered to DS2's English lessons. DS2 started using a laptop in English lessons as his 'normal way of working' in December and did most of his mocks on a laptop in January. If the exam boards accept this, he will type most of his GCSE papers.
So even the middle of Y11 might not be too late.