Completeness level of ~800 synthetic cores added on background image of W33-Main. The core content is 90% complete down to 1.0 ± 0.2 M_⊙ for the getsf catalogue. The error bars represent the ±1σ uncertainties for mass estimates across each bin (x-axis) and total cores retrieved per bin (y-axis). Data points were interpolated using the piecewise cubic hermite interpolating polynomial method. Blue points represent the full sample of cores detected by getsf