mocks query from experienced L2ers

how does the mock compare to the actual exam in terms of difficulty and similarity of questions? Similar topics or entirely different?

Entirely different topics for obvious reasons. I got 76/78 on the mock and I failed the real, so I guess the real one is more difficult. They put a lot more tricks into the real one.

I agree with topher, except my results were not as varied. Based on memory alone, I believe I scored a 70 on the mock and failed Band 10. I saw some overlap in the major areas (Equity, FRA) but they tested entirely different topics in other study sessions.