I know how you feel. I was originally told by my manager they don't give 74 scores. That is apparently not tue since I was in the same situation as you with BEC.
I used only Becker for all 4 parts. Honestly, I felt the AUD portion was probably one of their better sections. Their BEC section is not so great and I was planning to get a supplemental if I did not pass this time.
For me I found out I was more productive in the morning, so I would wake up around 4:30 am and study until 6 am then get ready for work. Then in the evening I would study from about 7 to 10pm.
The morning studying for just 1.5 hours was like 3 hours of evening study for me. Plus I could think about topics throughout the day at work from the morning.
Also the last week I would do a full review and hit the parts I felt week on.
For AUD it helped me to know the Reports. I would print copy the Becker samples and read then on my lunch breaks.
I think it would be a good idea to hit AUD early Jan and plan for the next at the end of Q1/2017. Since you are so close at 74 you are almost there. In my experience my score never went down in retakes, so I think you will pass this next round if you hit all areas again and have a review a few days right before the exam.
Best of luck! You will get there.