Hi Matt,
I think I'm understanding you correctly in that you are under the impression that you can partially pass the JAR ATPL written exams....?
If that is what you mean I'm afraid its either a pass or a fail, the pass mark is 75%, if you get 74% or less that is a Full Fail!, having said that if you DO get 75% or above thats a Full Pass!!!
I'm afraid that there's no grey area, no No Mans Land, nothing in between!
You can however get "Partials" during the flying exams, not that you'd want one.
Hope this helps
TBL