I was talking to a friend today that shoots USPSA and he mentioned that I "made a couple guys mad."
He proceeded to tell me that after I mentioned the FAST drill to him, that he and a couple Grand Masters tried it and could not do better than 9 seconds, even after trying several times. I smiled and said "It's a tough one isn't it!" then proceeded to let him know that it is a proficiency drill, not a practice drill.