Impact of different cosmic flow correction schemes on H₀. The uppermost (black) error bar shows the result from our baseline correction, which uses the 2M++/SDSS velocity field. The other points represent H₀ values obtained using alternative correction methods, with vertical positions indicating shifts ΔH₀ relative to the baseline. These include a variant of the baseline using additional group redshift corrections from Tully (2015), a variant using the same 2M++ density field but with original parameter choices from Carrick et al. (2015) (C15), a separate reconstruction based on the 2MRS density field, velocity fields derived from the Cf3 and Cf4 galaxy distance catalogues, and a case with no flow correction (CMB frame only). To facilitate comparison, the 68% confidence interval of the baseline is shown as a grey filled band, and its median is marked by grey dashes above and below the other error bars.