Distributions of key parameters for SL binary systems from startrack simulations for different SN models and survey instruments, separated by Galactic component (disk and bulge). Parameter distributions include lens mass (M_lens), source mass (M_source), effective Einstein crossing time (τ_eff), and SL magnification (μ_sl). Histogram bars with statistically negligible values (𝔼[𝒩_SL] ≲ 10⁻³) for M_lens and M_source are omitted for clarity, and the μ_sl range is truncated below 10⁻⁵ for clarity (cf. fig. 3 in W21).