Plateauing of mock scores is synonymous with the CAT mock-taking grind. With more mocks come more confidence and clarity. The flipside of it is that the scores do not rise beyond a point. Going from 40th percentile to 60th or 70th percentile would not have been tougher. But, the same cannot be said about going from the 80th to 90th percentile, and beyond. Which is why it is called ‘plateauing of mock scores’, after all.