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Tip Weight<br />
The higher the mass of the arrow tip, the more flexible the shaft becomes:<br />
the spine value is therefore reduced. If the arrows hit too far<br />
to the left (right-handed shooters), increasing the tip weight can move<br />
them to the center.<br />
If the shafts are too flexible and the arrows always move to the right,<br />
the reduction of the tip weight increases the bending stiffness, the spine<br />
value and moves the hit pattern to the left.