Well I finished AUD w/ over 1.5 hours left and BEC w/ over 1 hour left and that was after reviewing questions, but from everything I have read FAR you are the most pressed for time.
My strategy was that if it was a long worded question or I couldn't spot the answer IMMEDIATELY, within seconds, then I just marked it for review and moved to the next one, and then when I finished question 30 I went back and reviewed the ones marked. I sometimes would just mark it if I didn't know the answer before even looking at the answers. Doing it this way I think helps me move very quickly through the exam and not waste much time.
This strategy may not work for FAR though huh?
AUD - 81, BEC - 74, 80, FAR - 82, REG - 81
Done!