Comparison of sticking probabilities for two sets of paramet- ers: (a) PNH with narrower energy distributions and (b) SBG with wider energy distributions. Shown are the reaction probability of (ν = 0, j = 0) D2 without velocity averaging, the reaction probability of (ν = 0, j = 0) D2 with velocity averaging, the reaction probability with Boltzmann averaging over rovibrational states only, and the sticking probability computed with full averaging.