Cesc,
You may be the best speed summer in the world, but unfortunately you need that Grade B, especially in the situation the RAF is in.
As I asked previously, its a simple filter exercise, who has a B/who doesn't.
I was in the same position, I have two GCSE Mathematics grades both at Higher C, one was 9 marks away from a B.
I am hoping that in June 2011 I can re-sit one module to push the grade up to a strong B.
Best of Luck.