Comparison of different period spacing patterns for KIC 7760680, including the solution from Pápics et al. (2015) based on the LC_Pápics light curve. The multi-cosinusoid non-linear least-squares fitted to the LC_SAP, LC_PDC and LC_Pápics light curves are also shown on top of the amplitude spectrum in the top panels. The top-right panel is a zoom-in of the long-period regime. The resultant period spacing patterns of these four solutions are shown in the middle panel, with the residual of our patterns with that of Pápics et al. (2015) shown in the bottom panel. We note that the formal uncertainties on the data in the middle panel are smaller than the symbol sizes.