We analyse H + D-2 reactive angular scattering using the S-matrix elements obtained by Aoiz et al. and Althorpe et al. Enhancement of small angle scattering in the v' = 3 <-- v = 0 H + D-2 delayed reaction is attributed to a glory effect caused by threshold resonances in the v = 3 vibrationally adiabatic channel. The oscillatory structures in the reactive angular distributions are shown to be of nearside-farside (NP) origin and are likely to arise from capture in a number of relatively short-lived barrier Regge states at large angular momenta. Pade reconstruction of the reactive matrix element is discussed in detail. (C) 2003 Elsevier Science B.V. All rights reserved.