Originally Posted by dealt_with
The bag and how much it moves is no indication of force at impact, that's a measure of force over time (Impulse and momentum). If you're punching the bag with power at the proper range it should barely be moving at all. As I said before it sounds like you have a habit of leaning into punches, you should be rotating. Your snapping punches are arm punches obviously and not coordinated with the rest of your body. Very different from a snapping punch by a skilled practitioner. Look at McClellan for a good example of a guy who snaps his punches.
?? mcclellan goes all the way through
an example of a snappy puncher is mayweather
pacquiao when he knocked down(first or second kd) marquez in the first fight, snappy punches, looked like he wanted to land a punch and get out of the way of any possible punches at the same time