Perhaps you are suggesting that, typically ..
(a) at high weights the speed schedules will be stall limited
(b) as weight reduces the schedules will reduce, following the stall variation
(c) at a comparatively low weight Vmca/Vmcg will become limiting and there is no further schedule reduction with weight
(d) in most cases, with single declared certification Vmc values, this will be a simple cutoff. If a range of Vmc is declared, then the numbers will become a little more complicated.