Effects of selecting halos based on their assembly state indicators at z = 0 on their full MAHs. Blue solid lines show the most relaxed third of the halo population at z = 0 according to each parameter, specified in the sub-plot title. Orange dashed lines refer to the most disturbed third. Dark and light contours indicate uncertainty on the mean and population scatter, respectively. The insets indicate the dependence of z_form with the corresponding parameter, with a linear fit as the red, dashed line.