When determining how long your arrows should be, you will need to take into account both the length of your draw and the type of bow you are using. For a 29 inch draw, the ideal arrow length would be between 27-31 inches. However, if you are using a recurve bow or longbow, you may want to go with an arrow that is on the shorter side (27 inches). This is because these bows typically have a shorter power stroke, which can cause longer arrows to lose some of their energy and accuracy.