Hi Ron, recently, I have watched some films of Gerry Cooney on YouTube. The guy had undeniable power in his left, and a decent right. But I noticed that he had very little development in the biceps, triceps, and pecs, yet he still hit incredibly hard. The old fight manager Jack Hurely used to say "balance and leverage make punching power" -- was this the case with Cooney? By looking at him, I don't think he did any strength training, but he sure could hit. Thanks for your opinion.