In my boxing gym, we are taught the shoulder snap when we box, but I've seen something more advanced... I've been seeing many fighters like those of Freddie Roach and old heavyweights like Dempsey, Frazier, and Tyson doing a different technique. I've studied them and it appears that they use their rotators so the power and the angle change for each punch like a catapult. That's why people talk about punching through the target in order to get the hip rotation needed for the strike. I can preform each punch in both gifs, but it appears that I am picking up their bad habits of throwing wide punches without my other hand to protect my head. Furthermore, Tyson lacked a straight right and threw a looping overhand like punch and I became slower from Sugar Ray Leonard speed to David Tua power due to this technique. Please give a step by step instruction or a video on how to throw each punch with a powerline so I can prevent more injuries, get faster, and shorten my punches.