When you watch most of the biggest and fastest punchers in boxing it becomes apparent that 99% of them are supporting the head as they punch rather than using it to build momentum.

Punching while supporting the head took me longer to get used to and i would say it can be more difficult to learn than jolt step type punching if your postures bad. however the benefits in terms of mobility, speed, power/strength and endurance are immense.

Also when you look at the biomechanics a punch supporting the head is pulled into the target rather than pushed. Which means when technique is perfect (bone allignment & muscle activation becomes a huge factor) your punch can be as strong as you make it rather than being limited to just your bodyweight/freefall momentum.

Thats just my take on it Scraps way of punching took me longer to learn because i have postural deviances as do 98% of the population. But having lived with the style a few year now its becoming involuntary i can say it was an investment the hard work and years of practicce its taken definently payed off. And the best thing is i can always go back to weight transfer punches when i feel the need, its not like im bound to the back foot for life.

This is what developing as a fighter is about, if you only invest your time into average , easy to learn techniques you will always be an average fighter. There are genetic freaks that just feel how to punch and get it right everytime, to keep the rest of us safe while in with them we have boxing fundamentals and techniques taught by trainers to help guide us to clarity and give us some of the attributes that the talented fighters seem to have naturally, but theres still no comparison.