Illustrative model curves with torque-reversals corresponding to Ṁ_in values. The blue model curve is the same as given in Fig. 1b (Δr/r_in  = 0.2, η  = 1 and ξ  =  0.8). The black curve is also obtained with the same disk parameters, but for a larger distance that requires a stronger B and a higher Ṁ_in during the torque reversal. The magnetic field B and distance d values used in the models are given in the figure. It is clearly seen that the model with the larger d cannot reproduce the data (grey data points).