Fun fact, my friend and I used to practice one-inch punches on each other.... and the results were quite similar. It's such a small space that it's more about having your fist now occupy the space instead of raw power. As long as you can minimize the recoil you'll produce a similar effect if you try it. Don't start out with a fat person; the fatter the person, the harder it is to control the recoil.
That 6 inch punch... that's awesome lol
That 6 inch punch... that's awesome lol