Comparison of projected rotational velocities resulting from the Fourier Transform (FT) and the Goodness-Of-Fit (GOF₁) techniques obtained using the iacob-broad tool. Dashed lines represent a difference of 20 km s⁻¹ or 20% from the 1:1 relation, whichever is the largest. Red squares indicate those stars out of these limits. Different colors indicate the diagnostic lines used for the line-broadening characterization.