Left panel, left axis: similar to Fig. 1, but here the effects of asynchronism and eccentricity on the Roche lobe radius are taken into account (Eqs. (3) and (4)). Black, solid curve: standard Roche lobe formalism; red, dotted curve: f = 0.90; green, short-dashed curve: f = 1.00; blue, long-dashed curve: f = 1.02. Right panel, right axis: the same but for the distorted models.