Here in these photos Matt Brew Sensei (3rd Dan) and I are demonstrating some kihon-ippon kumite techniques. Take note of the targeting and trajectory to cause optimum effect; in particular, Matt Sensei's superb shuto yokomawashi uchi. "Ichigeki-hissatsu in practice".
Back to the original point of `hangeki', there is a hidden understanding from the past that can only be mastered by correct training; otherwise, ones hangeki will ineffective in a real altercation. This is concerned with the correct position of impact in relation to snap and body weight transfer. Overall, this must be physically understood and grooved into the subconscious via daily training. A superb example of this is Masahiko Tanaka Sensei's chudan kizami-geri, which if not controlled was said to be `hospitalising'. Whilst we should always be controlled in karate, our hangeki must always be pure martial arts; that is, if not controlled it will finish the person we are countering. This is karate-do, the "martial art", and this is hangeki.