Orbital periods and ΔRV_max for all models and observational data (triangles). Colors indicate the type of WD formed after mass transfer, and the markers indicate the type of mass transfer the system went through. Noninteracting systems are not shown. The shaded gray region indicates the region below ΔRV_max = 2km/s, where RV uncertainties dominate. The background squares show 2D log₁₀-scaled histograms of all 100 MC realizations of the ΔRV_max distribution for each binary system in the model; the markers are the mean of the distribution for each binary. Models with q_set = 3, models D and E and model A5 are the best matches to the data, showing more continuous period/ΔRV_max distributions.