The crossbow string’s center serving area should be centered on either side of the latch system for consistent shooting when the crossbow is in the cocked position.
- For ease of centering, you may want to use a permanent marker to color the part of the serving on the string that is immediately outside the rail on both sides of the stock when the crossbow is uncocked.
- When the crossbow is cocked, you can glance down quickly and check to see if the string serving is centered.
- If the string serving is not centered, it can be adjusted in the latch by pulling back on the string and moving it until the marks are centered.
- A sudden shift of arrow groups to one side is a good indicator that the crossbow is being cocked with the string serving off center.
- Using a cocking aid—a harness or crank—will help ensure center cocking each time.
For consistent arrow grouping, it is important that the string serving is always centered.