Left: Fraction of clusters with 2 or more cells for data and \gls{MC} for clusters selected with \gls{PCM-EMC} tagging and \gls{EMC} tagging. Right: Ratio of fully corrected \piz\ meson spectra obtained with \gls{PCM-EMC} (top) and \gls{EMC} (bottom) with $N_{\rm{cell}} \geq 2$ to the $N_{\rm{cell}} \geq 1$ with and without applying the cluster-size correction.