Cumulative distribution of ejecta masses for Type Ib SNe (top) and for all stripped-envelope SNe (bottom) that result from our models, but corrected for the strong variation in wind between WR stars and low-mass helium stars. Here, ejecta masses for stars with initial mass above the minimum mass of WN-type stars are drawn from our model results, and for the rest we assume no mass loss, but the same NS mass as predicted from its original model.