Ratio A_LITE/A_PD of estimated amplitudes for the light-time and physical delay contributions to ETVs for the best-characterized systems in Tables 3 and 4: blue symbols for binary A, red symbols for binary B (those ones having the ratio below 10 are denoted with their names). For sake of simplicity we assumed i_AB ≃ 90°, while the other parameters were taken from Table 4. The horizontal uncertainty reflects directly uncertainty of P_AB, the vertical uncertainty is a statistical composition of other parameters’ uncertainties.