When a dynamic shape is changed to static, its current auto-generated pieces are locked. Their outlines will never again be able to get back to the “ideal” outline you had drawn on the boundary class.

Effect of Shape on the Static and Dynamic Stress–Strain Relationship of Bonded Rubber in Compression A. R. PAYNE 1 Nature volume 177 , pages 1174–1175 ( 1956 ) Cite this article ...