Practise the moment a stroke changes weight or direction.
These cases isolate pressure timing and movement so learners can identify exactly where control changes.
Case 01 · Pressure begins too early
Three downstrokes reach similar maximum width but begin opening at different points. Learners mark the pressure onset, compare the resulting visual weight and practise a slower transition.
Case 02 · Release happens after the turn
An underturn stays heavy into the curve. The exercise asks whether the problem comes from late release, a sudden change of direction or both.
Case 03 · Hairline disappears after repetition
A first row remains fine but later strokes become rougher. Learners consider hand tension, angle and ink loading before changing tools.
Case 04 · Repeated curve drifts from the slant
The learner compares the entry and exit directions rather than judging the overall form. A short drill isolates only the turning movement.
Review note
Each case ends with one sentence: what was tested, what changed and what should remain constant next time.