Comparison of different outflow force calculation methods. Top: ratio of the outflow forces for the 10 sources of the PILS-Cygnus survey, as measured using the υ_max over the separation method. Bottom: ratio of the outflow forces for the 10 sources of the PILS-Cygnus survey, as measured using the 〈υ〉 over the separation method. In both cases, red points mark the results for i = 10°, blue for i = 30°, green for i = 50° and orange for i = 70°. Also plotted in black and gray dotted lines are the 1:1 and 2:1 ratios respectively.