In a recurve bow, the big loop goes on the top limb because it is under more tension than the bottom limb, which helps distribute that tension evenly across the bow. The big loop also helps to stabilize the bow when you are drawing it back, which makes it easier to aim. When choosing a place to put your big loop, you must ensure that it is not in the way of the string when you draw back the bow. If it is, it can cause the bowstring to slip off the loop and potentially damage the bow. You also want to ensure that the loop is not too tight, affecting the bow’s performance.