| Decreasing arrow point weight will NOT change the spine of the arrow.
Not so Marcus. Adding weight at the front or back of an arrow changes it's dynamic spine and it will act stiffer or weaker. A longer pile insert also changes the effective shaft length as you say but the weight has a major effect also. I have done this many times and the effect of 20 grains can be significant. I recently brought my daughters arrows into tune with a simple change of pile weight. |