Start with the rest bracket mounted 1/8″ from the string side of the sight window. Later in the tuning process, it can be slid further toward the archer to reduce required arm strength, if desired.
Set your plunger to your preferred centershot. A good starting point is: when you sight down the string and shaft, you should see about half the width of the point sitting outside of centershot.
Adjust the angle of the arm to your preference. Flex the arm toward or away from the sight window to set your preferred angle. Note: This angle is partially determined by personal preference, the module position, and the amount of centershot built into each riser.
Loosen the Allen bolt that clamps the brass module in place.
Move the module left or right to adjust the arm laterally.
Rotate the module as needed to center the shaft on the plunger.
Test shoot and tune using your normal methods. At this stage the arm will still be long, but you should begin shooting and tuning using your usual arrow/bow tuning process. Viable options include:
French tuning (see the Rossing Archery Facebook page for excellent info)
Tuning for 10s
Bareshaft tuning
Paper tuning
Once the final bracket position is confirmed, trim the arm to length. Use wire cutters to trim the arm and then deburr the cut end.
Modify the arm bend if needed for your setup and arrow type. The rest design allows for different arm bends depending on preference and application.
The most common modification is an “indoor bend.”
This is done by bending the arm about 3/8″ from the pivot point, directing it upward.
This upward angle allows larger-diameter arrows to stay against the plunger.
The indoor bend also provides more fletching clearance as the arm drops.
It can also be useful for hunting, where more arrow support is desired.
Other bend options include:
A bend at the tip to help hold the arrow
A “zniper”-style bend (which also works well)
If you aren’t getting the tune or crawl reduction you expect, reach out for help. Feel free to contact me with questions. Most people get a “quick tune” and don’t need to change much from their prior setup, but in some cases you may need to stay flexible and re-analyze multiple parts of your system. The effort will be worth it.
