Originally Posted by master of none
Is there a reason why his writing excludes scribing? I don't think the use of a scribe means he isn't allowed to also write. They are two different issues.
I'd go with: DS will be provided with a scribe for all work of 3 lines or more. In addition to scribed work, he is permitted to write any and all his work and will be provided with age appropriate lined paper for all assignments. This requires that he have a scribe and that the scribe has to write even when he is writing.

After x amount of time, times of dual scribe/writing can be assessed to change scribing requirements.

I honestly do not think they would even understand this accommodation. I also think it is way too vague for them and it lends itself to quickly becoming a situation where DS starts writing more and more, etc.

It seems to need to be spelled out very, very clearly for them ... otherwise it becomes "well, he seems fine" and less and less scribing is provided. And the accommodation becomes "when he asks if he seems fatigued"