'No, cladd. facing left was correct. flip it back.

Whether the derivatives are artifacts of python numpy library's np.gradient() function, the derivatives inherit the Composite's properties. In taking the derivative, the density of coordinates redistribute more symmetrically across the x-axis. Also this results in spacing where visual observation can better discern possibilities of moment within context of a frame-by-frame ordering. 

The implication of 'motion' necessarily integrating back to the Composite did not immediately register.