An important aspect of the molecular assessment is that CSP provides a complete landscape of possible crystal structures for each molecule, which allows us to examine the charge carrier mobilities for all structures on these landscapes. We focus our analysis on the low energy region of the landscapes and have calculated mobilities for crystal structures within 7 kJ/mol of the global minimum crystal structure for each molecule; most known polymorph pairs are separated by 7 kJ/mol or less, so we take this as the experimentally accessible energy range on the CSP energy landscapes.