Like Ty, I didn't either. I thought about creating EVM formulas but on the day of the exam, I decided to use the minutes for the brain dump to review my answers.

Many folks have made some sort of brain dump; I did not.
Since I practised the processes daily, by memorizing patterns and little number tricks, I was able to repeat them just from memory.
I did use little notes here and there during the test, but that was based on a per question basis during the test.
If you use a brain dump, just be aware how long it takes you to create it.

what do you use it for during the exam? I do it for every mock exams but I never had an instance where I feel the need to refer to it. Am I missing something?