Paper tuning is the fastest first-pass diagnostic on a compound bow. Shoot a fletched arrow through a vertically suspended sheet of paper at close range and the resulting tear shape tells you whether the arrow is leaving the bow point-first and straight, or fishtailing or porpoising because something is misaligned.
This interactive tool walks you through the diagnosis: pick the shape that matches your tear (tail-high, tail-low, tail-left, tail-right, or any combination) and it shows the specific adjustments — rest height, rest windage, nock point, cam lean, or arrow spine — that fix that pattern. Right- and left-handed conventions both supported.
Reference
For the full reference — every tear pattern, every adjustment, common mistakes, and the standard tune order — see the long-form paper tuning guide.
READ THE GUIDE →