The quality of the electrostatic potential is determined by the quality of the multipoles and polarizabilities that will inevitably be affected by the use of a fragmentation scheme. To fully assess the MFCC(HB) approach, the electrostatic potentials produced from standard MFCC and MFCC(HB) are benchmarked against a full-structure QM-based electrostatic potential, all calculated at the same level of theory. The electrostatic potential errors, relative to the QM reference potential, are plotted on a molecular surface defined by twice the van der Waals (vdW) radii, while the dependence of the error on the distance from the molecule is given as root-mean-square deviations (RMSDs) calculated for points on entire vdW surfaces produced by scaling the vdW radii.