Spatial fit means the ability to perceive a 3-dimensional object and how it fits in with surrounding objects.
Bi-lateral hand coordination is related to the ability to use spatial fit. Rotating an object while modifying it with the other hand accurately requires the ability to perceive the 3rd dimension.
The question is: Do people within ACL 5.4 coordinate the actions of both their left and right hands simultaneously in order to cut along the curved line with this maple leaf?