Becker sims compared to actual exam sims

Passed BEC two months ago, onto AUD now with the exam at the end of the month. How are people studying for the sims? I do them on Becker and usually get about 70-80% of the choices correct, but not sure how this translates to the actual exam. I've seen the google doc with becker to actual exam result, but I'm more curious about the sims in particular.