Do not worry about the old stuff, phaseouts, or even the results of your mock exam. Penalties, I’d suggest having a basic knowledge of. Accountants’ negligence/defenses are definitely something to know well.
The Becker mock exam is not realistic because it tests too widely, ie not giving enough questions for areas that are more heavily tested on the actual exam. People make 65 or 70 on the Becker mocks and end up with 85 or 90 on the real thing all the time. It’s a good analytical tool to see where your weak areas are but that’s it. A much better indication of where you are is how you do on blocks of random MCQ’s using a test bank.
AUD - 95
BEC - 87
FAR - 89
REG - 90