We investigate the substate distribution σ nlm in Rydberg manifolds ( n ∼ 10) following an asymmetric charge transfer reaction, C 6+ + H(1s) → C 5+( nlm) + H +, at velocities v ⩾ 1 a.u. These calculations serve as testing ground for two novel features included in our theoretical treatment, namely, (1) the use of a multiple scattering approach, the continuum distorted wave (CDW) approximation, to describe the capture process, and (2) the explicit inclusion of the post-collision interaction (PCI) with the residual target ion to supplement the primary capture amplitude. A measure of the multiple scattering contributions is obtained by comparison with the predictions of the first Born (OBK, single scattering) approximation whereas the PCI effects are gauged by inspection of the ( l, m)−distributions obtained from the resulting CDW(OBK)-PCI model with those calculated with the standard CDW (OBK) approximation.