2Blades response x2 - I would also add, do not let anyone discourage you from using one. There is no shame in gaining full control of your shot, no more mental battle with short draw and varying arrow spine reactions. Full draw, push/pull, draw elbow straight back, all focus on arrow impact location, back tension release... As 2Blade states "know you're going to hit the spot". I can shoot without it as well after ingraining the whole process into muscle memory & mind control but still leave it on as it greatly helps with shooting from various angles & stances or clothing differences. Always the same draw length.