I did the Proficiency exam (Cambridge) last Thursday, and I'm afraid my performance was not as good as I expected. Grades will be available in one month. Anyway, I will be happy to analyse the exam. If I find someone else interested, we can talk about the questions.
Regarding "use of English", part 4 (keyword transformation), I was able to remember these:
We can share impressions about the texts and the answers that could be correct at each section (reading, listening, use of English).