What is the role of the bowstring mounting lip?

Don't underestimate this little accessory. It mainly helps the player to position when pulling the string, but the head position is also very important. If the head is fixed when the bow is pulled, the lip is hard to find.
It doesn't matter if the position of the lip bead is fixed to the head, but it has a lot to do with the position of pulling the bow and pulling the bow, thus affecting the comfort and stability of the shooter.
That's right, the head needs to be the same position as the card point, but the shooter needs to learn to keep the head relaxed and let the head turn freely. This kind of arrow can pass the signal piece smoothly. This practice is still controversial. There are too many players trying to fix the position of the head, so that it is difficult for them to smoothly pull the arrow through the signal piece because it is blocked by the head. Can't pull back.