Top: spectral-line fits for the SB1 system BLOeM 4-097. Three different spectral lines are shown for epochs closest to quadrature. Observed spectrum (black) is overlaid by best fit and 1σ confidence levels (red); dashed grey profiles indicate initial guesses. Bottom: Similar to above, but for SB2 system BLOeM 1-055. Two He I lines at three epochs (near quadrature and conjunction) are shown. The dashed red line marks the mean SMC velocity of 172 km s⁻¹ (Evans & Howarth 2008), with a ±200 km s⁻¹ deviation (dashed yellow lines).