Passed the recurrent exam again today with a score of 90 (second time to renew). I reviewed Drone Pilot Ground School Curriculum for a couple of days to refresh my memory. Watched some of Alan's lectures and took the practice tests. There were a couple of tricky questions but I was able to figure them out with the knowledge gained from studying the curriculum. I missed 4 questions but I have no idea which ones. Great job on the ground school Alan! Thanks!