Visualizing the clog lengths in the scatter plots of Fig. . provides position information that cannot be seen in Fig. . As φ increases, additional clogs form nearer the inlet (x > 2 cm) for each ∆P. But, interestingly, at the highest ∆P, Fig. shows that it is the longest of the clogs that appear further upstream as φ increases. This φ -dependent shift in the position of the longest discontinuous clogs is observed when ∆P ≳ 1000 mbar (see Fig. in SI for other ∆P cases).