Recovered lags of mock light curves as a function of input line light curve l(t) lag. The colored points show the results for different variability amplitudes of the line light curve. The solid blue lines indicate the variability amplitude observed in the Hβ light curve. The black dashed line represents the input lag of the continuum light curve c(t), while the red dashed line is the observed lag and the red band is its 1σ uncertainty. See Section 4.3 for further details.