Flat spots and wobble
Cause: Wrist‑led segments and micro‑corrections. Fix: Switch to shoulder‑led motion, set a 2.5–3.0s tempo, and run the Clock Drill. See Shoulder vs Wrist and Roundness Explained.
Center drift
Cause: Watching the line instead of its relationship to the dot. Fix: Center Lock, Crosshair, and Grid Passes for one week. See Centering Techniques.
Closure seam
Cause: Aiming at the start point and braking. Fix: Aim through and match tangent early. Use Portal Drill. See Closure Techniques.
Egg shape
Cause: Speed changes by quadrant. Fix: Tempo Pyramid and Direction Alternation.
Inconsistent tempo
Cause: Anxiety near start/end. Fix: Count a steady rhythm, glide through the start, and avoid last‑second corrections.
Over‑gripping and tension
Cause: Trying to control with force. Fix: Loosen grip, shake out hands between sets, and lower resistance by increasing radius.
Wrong radius choice
Cause: Training too small or too large for your skill. Fix: Find your sweet‑spot radius, then rotate sizes. See Small vs Large Circles.
One‑direction bias
Cause: Always drawing the comfortable direction. Fix: Alternate every rep to balance your pattern.
Device mismatch
Cause: Slippery glass or overly tight mouse settings. Fix: Matte protector for stylus; adjust pointer precision; use a desk mat. See Mobile vs Desktop.
Fatigue and late‑set drop‑off
Cause: Overlong sets. Fix: Keep sessions to 10–15 minutes and stop before quality falls.