Separate fits of D_mom(L) for the stars in WLM and NGC 3109 (circles) and IC 1613 (diamonds). The points representing the stars of IC 1613 are from KIWI-GA runs where Z = 0.2 Z_⊙ was assumed. Grey shaded regions represent 1σ uncertainties on the lines of best-fit. Square points have not been included in the fit and red borders indicate troublesome runs. The colour scheme is the same as that of Fig. 5.