a) Shows a comparison between PwS and AMI MAP Y_tot values as a function of AMI (PwS) θ_s values in black (red). The one-to-one relationship is plotted as a black dashed line. b) Shows Y_tot as a function of θ_s as measured by AMI (black) and PwS (red) for all of the moderate and clear detections. In both plots, the size of the points plotted increases with increasing Planck S/N, clear detections are plotted as filled circles, and moderate detections as empty circles. Error bars are omitted for clarity and since the errors in Y_tot and θ_s are correlated.