There are always something going on at the Ambrose Archery centre.
Judges must be concerned with safety aspects at all times during a competition. If, in the opinion of the Judge, an athlete is using a technique to draw back the string which could allow the arrow, if accidentally released, to fly beyond a safety zone or safety arrangements (overshoot area, net wall etc;), the athlete must be advised to change her/his technique.
Drawing a bow or pulling the string back (you don't need pencils for this) uses both arms equally. The bow hand is pushing the bow away as much as the string hand is pulling the string back. It can be compared to stretching a rubber band.
First appearing at the Barcelona Olympics in 1992 the Match round was seen as a way to make Archery more entertaining to watch. Up until then the double FITA was used which involved shooting two days of 144 arrows each. It is Archery's version of test cricket.