It's hard to say because it's never an 100% direct match for how mock exams compare to Becker.
My biggest suggestion would be to compare and see what sections you are weak at on the mock exams. For me, I took down all of the percentages for each section (A1-A6) and saw what I really struggled at. I saw that I was terrible at A4 Material, while being really strong at A2 and A6. So, leading up to the exam, I spent more time on A4 while making sure I am maintaining my knowledge in my stronger areas.
A few ways to help expand your knowledge of your weaker materials:
– Reread everything (not necessary, but helps me)
– If you marked questions while going through the MCQ after each chapter, go through and do the marked ones. Take notes on what you are still missing, review, and repeat.
– My personal favorite is doing the sims purely for the section I am weakest (So A4 in this case) and really making sure I understand what is going on. A4 has 3 sims with a lot of different problems to help me grasp the material.
With 4 days left (mine is in 5 days, scary stuff!!) I am just making sure to do at least 100 MCQ/day and at least an hour of sim practice a day to make sure I am prepared for a variety of questions and won't get “tired” once it comes exam day. I still write down the things I miss and review them. At this point in review, It's just to keep hitting your weak stuff and being sure to at least skim over the stuff you are good at. Be sure to keep listening to the NINJA audio when you can. And according to what they say about Ninja, if you can get I believe an 85% trending score on your MCQ, you will be looking pretty good for the exam. Just keep practicing and working at it. Best of luck!!
EDIT: Oh and be sure to go to the AICPA website and do a practice run (just a few MCQ and a few sims). As well as view the 2018 AICPA released questions (both moderate and hard) that you can find on either Becker or Ninja.