shape of the clip can actually help provide a more stable grip on the thread and fabric, while with other models the result may not change at all.
The best way to know if it works
The simplest test is to look at your clothespin and check the shape of the recesses. If they’re clearly shaped to accommodate the thread, you can try placing the string in the appropriate part and then securing the end.
The result will depend on the diameter of the wire, the type of fabric and
