Mikro-Anpassungen
Micro-adjustments are the small, deliberate changes made to a bow's setup after coarse tuning is complete — typically rest moves in the 0.001"–0.010" range, half-twist string or cable changes, or single-increment draw-stop shifts. Their purpose is to lock in the tightest possible groups once the bow is already in rough tune and all gross errors have been eliminated.Details
The logic of micro-adjustments is that coarse tuning removes large errors — a badly misaligned rest, a nocking point several millimeters from correct, cams clearly out of time — while micro-adjustments extract the last increment of performance from a setup that is already producing acceptable results. At this stage, paper tears may look clean and bare shafts may be grouping close to fletched arrows, but groups at 30–40 yards still have room to shrink. The remaining variables are small enough that only group size — not a paper tear or a bare-shaft gap — can detect them reliably.
Common micro-adjustment levers include: lateral rest position (moving a micro-adjust rest in single-click increments), nocking point height in 1/32" steps, draw stop timing by a single twist of the appropriate cable, peep height, and point weight when choosing between options separated by 5–10 grains. String and cable twists are especially fine-grained — a single half-twist change is sufficient to detect timing shifts. Each variable should be changed one at a time, with a full group shot at a consistent distance between each change, following the same process-discipline that defines group tuning.
Micro-adjustments require the archer's form to be consistent enough that shot-to-shot variation does not overwhelm the tuning signal. A group size that varies by 2–3 inches between ends due to form issues cannot be meaningfully improved by moving the rest 0.003". The practical test is to shoot several groups in a row without changing anything — if group size is stable across ends, form is consistent enough to proceed with micro-adjustments. If groups vary widely, form work should come first.
One risk with micro-adjustments is over-tuning: making so many small changes that the cumulative direction of travel is lost, and the setup ends up farther from optimal than when the process started. Keeping a written log of every adjustment — what was changed, by how much, and what the group result was — makes it possible to retrace steps and identify where peak performance occurred. Most well-tuned setups require only two to four micro-adjustment iterations before groups plateau.
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- How do I know when I'm done with coarse tuning and ready for micro-adjustments?
- When your paper tear is at or near a bullet hole, bare shafts are grouping within a few inches of fletched at 20 yards, and your groups are consistent across ends but still larger than you expect, you are in micro-adjustment territory. If any gross problems remain — cams obviously out of time, nocking point clearly off — address those first.
- How small is too small for a rest adjustment to matter?
- Below about 0.001" — less than a single click on most micro-adjust rests — adjustments are unlikely to produce a measurable group change and you are probably at the bow's noise floor. If your rest does not have sub-0.005" adjustment capability, group tuning at the click level is the practical limit.
- I made several small changes and now my groups are worse. How do I recover?
- Return to the last recorded setting that produced your best groups — this is why a written log is essential. Restore that exact rest position, twist count, and nocking point, shoot a confirming group, and then proceed again one variable at a time in smaller increments.