How should archers respond after one whistle blast?

The appropriate response for archers after hearing one whistle blast is to start shooting. This signaling system is commonly used in archery to ensure safe and organized shooting practices. One whistle blast indicates that it is safe for archers to approach the shooting line and begin their shooting sequence. This is a part of standard range etiquette and safety protocols.

Starting to shoot when this signal is given allows for a controlled environment in which all archers perform their actions in unison and respond to the instructor's commands. It is essential for maintaining the flow of the shooting session and for ensuring that all archers are aware of when they are allowed to shoot.

In this context, remaining behind the waiting line, preparing bows, or waiting for another signal does not align with the established order of operations following the whistle signal. Each of those responses would disrupt the anticipated rhythm and efficiency of the archery practice session.