I have developed a brief guide of ideas for conciseness on actuarial essay exams, with an emphasis on the upcoming Exam 6. You can find it linked from this page:

I do not claim this to be an exhaustive list. Indeed, I will be happy to incorporate any modifications or other ideas for effective conciseness that participants on this forum have. I only request that comments on conciseness be kept specific to the exam setting.

G. Stolyarov II