As seen in Figure , comparing pre-annealing and post-annealing thicknesses obtained throughout a majority of experimental range, there is no sample group of varying molecular weights and concentrations that underwent a change in thickness greater than 10% after vacuum oven annealing. With the difference in coverage thicknesses being relatively minimal, this work aligns with previous studies on the effects of annealing PS thin films, of which implicate that annealing has minimal effects on the coverage thickness of the spin coated polystyrene films. Our results further justify the aforementioned conclusion and are therefore upheld. For this reason, we've determined that the presented manifold model can be used to predict, to an approximate degree, the coverage thickness of both unannealed and annealed PS thin films, further boosting the practical applications of the model.