I believe it is best to assume na yung mismong kausap mo ang magbibigay ng grado sayo... if you performed well doon sa actual Speaking exam, it would transcend doon sa recording, and any examiner na makiking doon would give relatively the same score.
In my observation, my examiner was talking a lot to me before and after the exam.. I don't know but somehow, I can feel that yung pakikipag-usap ko sa kanya ang actual "test" na ginagawa nya sakin...
Let’s be mindful that although IELTS is a very technical test, “communication” ang foundation nung exams na yun and mga totoong tao yung examiners.
Baka kasi yun yung konting "boost" na kailangan nating ibigay para ma-push pa natin yung scores natin a band higher...
Again, don't take my word for it... Just my opinion and observations po. 🙂