My first I did respectably. I did a second and did a little better. I did a third and the score was 5 points lower than that, the lowest of any I got. For me it was useful to look at the conditions of myself and my surroundings at the time. I was overly tired, there were a lot of distractions, and it just went poorly all around. After that I made sure to do them at a time of day when I would not have distractions and could be well-positioned for better success.