Recent work by Milne and Jorge suggests that polarization corrections of the form utilized by Berendsen, this work, and many others is unnecessary -and perhaps undesirable -in order to reproduce experimental observables such as the enthalpy of vaporization and hydration free energy of water and other polar liquids. Interestingly, our results suggest that when these properties are not used in the parameterization of the water model, the resulting enthalpy of vaporization will still be significantly greater than the experimentally measured quantity. Specifically we note that the enthalpies of vaporization of TIP3P-ST and TIP4P-ST are both somewhat greater than experiment (by approximately 0.57 and 0.33 kcal/mol, respectively) even after correction. If the polarization correction were not included, then the simulated ∆H vap would be even more positive and further increase disagreement with experiment, as the polarization correction for moving from the condensed phase to the gas phase is always favorable. We are optimistic that the procedure described in this study can be applied broadly to develop future generations of force fields for organic liquids and the nonbonded energy terms in biomolecular and general small molecule force fields.