In the following, we will explain three effects seen in the current density of even [n]cumulenes using the MOs and their gradients: why the current density, at EHOMO, changes direction at every other atom; why no nodal plane is seen in the current density; and why circular current density emerges from helical MOs. To answer these questions, we simplify the analysis of the current density by calculating it at EHOMO using only ψHOMO and ψHOMO-1.