Quick answer: The combined effects of profile change, friction and restart can be more visible there than during a continuous sweep.

Why test a reversal near the transition?
Users may hover around the point where effort changes. A full-stroke test may not capture repeated small reversals. Define the actual adjustment sequence and distinguish profile behavior from guide sticking before altering the spring specification.

A practical verification method
Reverse in short intervals around the transition and record movement smoothness and directional force.
| Item | What to record | Purpose |
|---|---|---|
| Reference configuration | Part or assembly identity and drawing revision | Make comparisons traceable |
| Test conditions | Relevant position, direction and operating condition | Compare the same characteristic |
| Decision evidence | Reverse in short intervals around the transition and record movement smoothness and directional force. | Resolve the specific question before approval |

Use the result in an engineering request
Describe the observed condition and the required function separately. Include the relevant drawing revision and your results from the check above. If an acceptance limit has not been established, identify it as an open design input rather than treating a successful trial as approval.
Review the related Leading Spring product information. For a project-specific review, send the mechanism description, available geometry and the evidence relevant to this decision through the contact page.
Editorial note: AI-assisted engineering guidance, prepared from the topic-specific reasoning shown here and the company’s public product context. Illustrations explain decisions; they are not customer-case photographs or test results. Product-specific suitability requires review against your approved requirements.