Significant efforts have been made to relate the material figure of merit (µC*) to chemical and morphological features of the OMIEC film to ascertain design guidelines, and therefore enhance performance. Since the initial benchmarking of OMIEC performance for OECTs, research has primarily focused on systematic chemical modifications of the side-chains and polymer backbone to enhance performance. While reported µC* values have dramatically increased through these design strategies, multiple reports of the same material, operated under the same electrolyte environments, display significant variability in performance. For example, high performing p(g2T-TT) has been reported with five different µC* between ~ 299 and ~ 93 F cm -1 V -1 s -1 in 0.1 M NaCl; 9-13 a similar phenomenon is observed in reports of P3MEEMT. This batch-to-batch variability suggests other features of the CP-based OMIEC may play significant roles in mixed conduction.