I've used the literature to help me determine how to handle different taxable items when I wasn't sure based on the question. I usually do key word searches or search in part of the code where I know the information should be. That is the only way I did well on my SIMS last test, because they were completely foreign when I got there based on my study materials. My unhelpful results where “better than those who passed” for my SIMS on my 74 REG exam in May.
I usually go through all of them first to eyeball which I think will be the hardest. I hit the research question(s) first, as that is the all or nothing. I then hit the ones I think are easier, whether shorter or just a topic I feel more comfortable with, before moving on to the harder ones. I fumble through the hard ones to ensure I get answers in all the blanks. Then I spend the rest of my time researching if my answers are correct and go back and change as needed. If I still have time left, I go back and look things over to one more time.
BEC - 86
FAR - 72, 74, 79
AUD - 73, 82
REG - 74, 81
Whew! Just barely made it before BEC expired.