I think one of the best take aways from Chuck's comments are those about Liston's jab being the best he'd seen, not Ali's or Foreman's. It goes along with what other's have said about how Sonny could knock out teeth and break bones with a jab.
He was like the ultimate master of stepping through with the jab, keeping his balance the whole time. Incredible.
He mentions it in this interview from 2002. Interviewer: Who was stronger, Muhammad Ali or Larry Holmes? Norton: Oh, Ali definitely. Ali was very strong but because he wasn't a one punch KO artist it is overlooked. Hitting Ali in the body or on the arms was like hitting a piece of cement. https://tss.ib.tv/boxing/articles-o...h-ken-norton-norton-speaks-on-fights-with-ali