One popular approach to constructing inhomogeneous models has been so called Swiss Cheese models, where spherically symmetric inhomogeneous patches are embedded into a background FRW universe. I will present a set of conditions that force the average expansion rate of the inhomogeneities to be close to that of the background universe in these models. In addition, I will construct a toy model where one of these conditions is violated. I will use this model to compare the effect of volume-averaging on cosmological observables, like redshift and luminosity distance, and explain why there may be differences.