1. We know the First 3 Volumes are fine, that's what we constantly use... the problem is that we can't stay on that constantly because 2. Star Platinum doesn't need to constantly be CB-MCB for his feats to stay that way throughout the rest of the parts because the scaling still works for every other character and thus him. RWBY has this exact opposite problem where outside of the Gods, people suddenly gain and lose power depending on the plot. Including Salem or the Best Hunters in Atlas, The Ace-Ops. It's like seeing DIO and Jotaro do their feats in the OVA... but the rest of the series have them struggling against Cars and thrown rocks.