I think @Jeff would have the best explanation of how to use as a supplement and as a recourse after a failed exam.
That said – I have not failed once with Ninja. I started with Ninja in order to get past FAR.
I used Becker as well. If you have gone through the videos with Becker, then repeating that sounds like a kind of hell Dante couldn't imagine. I would shift focus to Ninja and only refer back to Becker when you need a second opinion.
Here's what I would do.
1. Get through all Becker material (either vids and/or book). Take good notes (I like to take my own notes).
2. Now you have this mountain of info. Read Ninja Notes – every page once. Now a lot of things will start to gel (it's that 2nd perspective that Ninja provides).
3. Now keep reading and/or listening to Ninja audio periodically. Like someone else said – always consuming. Your “Beatles White album” is called “Ninja Audio”.
4. Go through MCQ in intervals of 30 questions. Do 3 to 4 sessions of “all” questions, then do sessions just on your specific problem areas. Look for the improvement in learning curve. No improvement, no pass. Use the session results to track your performance and use those as your “mock exams”.
5. Take your own notes of learnings in MCQ for both wrong answers and surprising right answers.
6. Be sure to sprinkle in sims – maybe 1 or 2 a day.
I tried to do 60-90 questions a day on FAR, so REG would be similar. Take exam when ready.
AUD - 77
BEC - 81
FAR - 77
REG - 81
REG - 1. Becker only - fail (forgot to study depr - oops); 2. Becker only - Pass
FAR - 1. Becker only - fail; 2. added Ninja Notes and MCQ - Pass
AUD - 1. Becker videos; Ninja Notes, Audio, MCQ, Becker Notes - Pass
BEC - 1. Ninja Notes, Audio, MCQ, Becker Notes - Pass