u/Ancient_Mobile_3131

I noticed that a lot of the questions in the Bluebook question bank seem to also appear in the official practice tests. So if I grind the question bank first, wouldn’t I end up seeing repeated questions on the practice exams and score artificially higher?
That makes me wonder whether practice test scores are actually representative of my real SAT performance. On the actual exam, I obviously won’t get the exact same questions, so wouldn’t repeated exposure make the practice scores somewhat inflated and less reflective of my actual understanding?