Running from the back today as a tail runner, and whilst running in everyone’s footsteps it became apparent that we are running too close together on the very narrow trails, as the runner just in front obscures any hazards such as roots, stumps, rocks and sudden inclines.
For your own safety we should run at least 2 runners’ lengths apart (10-12 feet) on the narrow paths, to allow an un-obscured view of the terrain just in front, as you have no leeway to adjust your course laterally, and therefore you need the time to pick your foot placing more accurately.