This shows the two common variations on a Z drag hauling system, both using a Prusik minding pulley with two triple wrap Prusik loops for progress capture. In the first the traveling pulley is connected to, and pulls directly on, the load. This requires a rope that is at least twice the distance between the load and the anchor, but can pull the load all the way to the anchor without resetting the system. In the second variation the traveling pulley is connected to, and pulls on, the hauling line. Because the traveling pulley can be much closer to the anchor than to the load it can be set up with less rope. The disadvantage is that the system may need to be reset, depending on how far the load has to be hauled. To facilitate resetting, the traveling pulley is typically connected to the haul line with a Prusik loop.