This is a very deceptive mechanical advantage system and extremely easy to set up. Picture two really strong persons pulling on a taught line. Now, take your typical 98 pound weakling and have them pull in the center of that line. With little force, that 98 pound weakling can drag the other two together. The Vector Pull provides the greatest strength when starting at 180°. You lose all mechanical advantage at 45°. The Vector Pull is often used to assist a belaying rescuer pulling a boat and paddler into shore - simply work your way down the throw rope. One item you need to consider is anchor strength. Many anchors are very stable in one direction only. A Vector Pull typically moves the angle of pull and this may loosen your anchor system - be careful.