I once joined a class of Katsunori Kikuno in Tokyo. His focus was on systema at the time, some weird Russian combat system which still doesn't make sense to me, and Okinawan Karate. According to him, the key to a good jab was to use your whole body, to first unbalance yourself and not telegraph the punch at all. After class he showed me how he could throw that jab to close the distance and then follow up with two fast hooks. One to the body and one to the head. It was incredible to see how invisible the jab was and how he instantly stood at point blank range to take me out. To this day I still don't really 'get' it, but it looked a bit like Jukuchou's jab or Michael Jai White in his scene with Kimbo Slice (which I'll save for another time) In this video you can hear one of Kikuno's students explain the same concept for a straight punch: https://youtube.com/shorts/K7Cx9Z_eROY?is=bAmrkQupEVFiTjxY Bonus points if you recognize the kata 😉