Quick Answer
Walk-back tuning is a method used to adjust the cam timing of a compound bow, and it can significantly affect the vertical impact of the bow. This is because walk-back tuning involves adjusting the position of the cams to achieve a desired arrow rest position at full draw. When these adjustments are made, the bow's overall kinematics and arrow flight pattern are altered.
Understanding Walk-Back Tuning
Walk-back tuning involves moving the cam limbs backward to adjust the cam timing. This is typically done to achieve a desired arrow rest position at full draw, which affects the bow’s arrow flight and impact. When the cam limbs are moved backward, the cam timing is delayed, which can increase the arrow’s dwell time and reduce its speed.
Effects on Vertical Impact
The vertical impact of the bow is primarily affected by the cam timing and the arrow rest’s position at full draw. When the cam timing is delayed, the arrow’s flight path can become more vertical, resulting in a higher vertical impact. Conversely, when the cam timing is advanced, the arrow’s flight path can become more horizontal, resulting in a lower vertical impact.
Tuning for Vertical Impact
To achieve a desired vertical impact, archers can use a combination of walk-back tuning and arrow rest adjustments. By fine-tuning the cam timing and adjusting the arrow rest’s position, archers can achieve a more consistent and accurate arrow flight. For example, if an archer wants to increase the vertical impact of their bow, they can try delaying the cam timing by 1-2 degrees and adjusting the arrow rest to be 1/8 inch higher at full draw. This can result in a more vertical arrow flight and a higher vertical impact.
Find more answers
Browse the full Q&A library by topic, or jump back to the topic this question belongs to.