if someone ranks 20th in a top 15 school for a assessment is that really bad (like wont be enough for a band 6) ? like someone at a like top 100 school did the exact same internal paper, get worser marks than the 20th person in the top 10 school, but still rank 1st in their school? How much realistically would you have to rank at a top 15 school to get a band 6?