Difference in distributions of the LC (top-left) and BH (top-right) mass, the mass-ratio (M_BH/M_OB, bottom-left), and the period (bottom-right) of the OB+BH systems in the LMC (filled) and Milky Way (open) after applying the corrections mentioned in Sect. 2.2. The mass distributions of the LC are almost identical and minor changes occur due to the relatively weak winds of the main-sequence LC, whereas the masses of the BHs are shifted towards lower values due to the powerful stellar winds experienced by the post-mass-transfer components. Hence, the mass ratios have shifted towards lower values as well. The orbits have slightly widened.