The fraction of the population undergoing internal conversion through the seams associated with these OOP-CIs varies significantly across the three investigated systems: In CHD, only 21% of the excited state population accesses this pathway. Conversely, it is accessed by 40% of the excited state population in the equatorial conformers of αPh, whereas it is unpopulated in the simulations of αTp. Based on the distinctly different geometries of the OOP-CIs with respect to the RO-CI it is not surprising that no electrocyclic ring-opening is observed for the population fraction accessing the OOP-CIs.