What should the reel person maintain between tie-offs and placements to avoid slack line?

Maintaining tension in the line is essential in cavern diving to ensure safety and efficient navigation. When the reel person keeps the line taut between tie-offs and placements, it minimizes the chances of the line becoming slack, which can lead to potential entanglement or losing track of the path back to the exit. A tight line allows for clear navigation and provides a reliable reference point for divers. This tension also aids in minimizing the risk of the line becoming snagged or caught on underwater obstacles, which could pose a danger during the dive. By prioritizing tension, divers can ensure they are better prepared to manage disturbances in the cavern environment, maintaining a more controlled and safe diving experience.