Since the first few chapters Itagaki has been on and on about the bite force and the jaw leading to power throughout the body. Is there any chance that he marries the two concepts? As in: the “bite” is what holds the prey in place at large, then the "bite down” into a “clenched jaw” yields the perfect tension as well as positioning for the most devastating "response" possible.
With Hanayama, if Jack can find a way to “bite” the rawest form of pure power that has been represented in the manga so far, then it means that the technique of Jack’s new form is all about how to secure the “bite”. Right? Victory would be assured after it but getting TO that point is the journey and refinement he has to get around.