Posterior on the parameters of the BetaSpike+TruncatedMicture component spin model, now using only GWTC-2 events (purple). The shaded region in the μ _χ –σ _χ two-dimensional posterior is the region excluded by the prior cut on the shape parameters of the beta distribution α, β > 1. For reference, results using the full GWTC-3 event list are shown in orange; the GWTC-3 result is identical to the one presented in Figure 6. We find broadly consistent results between the two catalogs, including no requirement for a zero-spin subpopulation as well as a preference for spins misaligned by more than 90° relative to binaries’ Newtonian orbital angular momentum.