In the collective limit, the reorganization energy of the |+⟩ state relative to the collective ground state |G, 0⟩ is lim N→∞ λ + = 0 which implies the |+⟩ state has the same equilibrium geometry as |G, 0⟩ (given that |G, 0⟩ has a unique equilibrium geometry). This allows for equilibrium rates from the |+⟩ state to an acceptor state to be calculated when the reaction is initiated with an FC excitation.