Hi Stephen.
I agree with both Lawrence and smeeagain.
I too examine for both organisations. [30 years and 3000 test now] Given out loads of different grades from people of all different walks of life. GOLDS well. Most recent was a St John Ambulance driver and two lorry drivers!!
Yes I get tests from all over and promise them a special route to enjoy and show me their skills and abilities.
Focus on that and getting a pass.
Sorry if a comment has upset you. I might say that, as that is my way, and it would be in fun to relax you. I have never had an Instructor contact me before a test though? Except perhaps if Fleet work. Sometimes I ask what grade you had last to ascertain what your aims are all depends. If an initial test I just conduct it.
If I may be slightly bold sounds as if you have just a touch of Testitus. Please 'chill' and if you are really concerned enough as Smeeagain suggests, wait or ask for another area/Examiner. Is it very far, way out, where is it?
We all like to please as does the organisation. I have also had mis allocations too with a 100 miles round trip.
Hope that helps Best wishes on test.
Whatever grade, you can do it again and will do in three years.
Cheers Andy