Here we plot the posterior distribution of coalescence times for the SBHBs in our best-fit model. We find the median value of the distribution to be ﹩\langle {t}_{c}\rangle =1.{6}_{-1.0}^{+1.8}﹩, where the uncertainties are the 68% confidence intervals. This is significantly larger than the G. Agazie et al. (2023b) value of ∼0.1 Gyr and similar to timescales found by L. Z. Kelley et al. (2017a) for massive binaries with high mass ratios.