$\overline{\omega }=\frac{{\dot{M}}_{\mathrm{w}}}{{\dot{M}}_{\mathrm{accr}}}$ vs. Eddington ratios for a sample of 54 UFO systems in 40 AGN. The filled circles represent z < 0.3 AGN, the open triangles show z > 0.3 AGN, and the open circles show lensed AGN. The shaded green area is the expectation of the Sadowski & Narayan (2016), SG17 and GS17 models, and the yellow area is the expectation of the analytic magneto-centrifugal model (e.g., Cui & Yuan 2020).