Representative Stokes-V data and results for RSP 177. a. Top spectra: All available 19 LSD Stokes-V line profiles are overplotted in units of the continuum expanded by a factor 100 and shifted in intensity by 0.1 for better visibility. Bottom spectrum: Example LSD Stokes-I profile. b. Phase-resolved disk-integrated Stokes-V LSD line profiles in units of Gauss. c. Longitudinal magnetic field versus rotational phase. Indicated are the two observing seasons for this target (S22: filled dots, S20: rings). The appendix provides similar figures for the other targets (Fig. B.3).