Shane Mosley's Abilities at Lightweight and Welterweight

I disagree with the OP, Mosley was a volume puncher at lightweight and stopped almost everybody he fought at 135, whereas when he moved up to welterweight he became a power puncher, throwing fewer punches and looking for the big shots all the time. His volume-punching style completely overwhelmed guys at 135 and I feel like he should've carried up to 147, but always seems intent on making a statement that he wasn't too small or weak to compete at welter.