log f_c- and log f_p-values for the primaries (black symbols) and secondaries (red symbols) in the SB2 systems. Upper limits are indicated as downward triangles. Filled symbols denotes systems that have eccentricities within 2-σ of zero. Also shown are a typical error estimate and the upper limit for synchronous rotation (dashed black line). Estimates for #199 have been slightly shifted to aid legibility.