Torque profiles using PAWS (1.7′′ resolution), THINGS (6′′), and HERCALES (13′′) compared to the equivalent profiles using the ICA s2 component (dust map) at matched resolution. The thick black line is the fiducial profile (using the actual gas distribution), the thin blue line corresponds to s2. The agreement is not one-to-one, but s2 can be used as a first-order approximation in the absence of gas information at high enough resolution.