One thing that the written does do is set a tone and a little bit of that first impression. Its human nature we can't help make first impressions. If I was meeting someone for the first time and was reviewing the paperwork and saw a 90%+ and a mid 70s% my first instinct is that the applicant with the 90+ will probably do better.

To the original poster it most certainly would have to do with a difference in examiners.