Kancho's essay Back NO,10 
About the (historical) movement that had disappeared in Kata(For instance, for SAIFA........ HOME
The standardization of KATA by WKF deprived traditional KATA of a historical and actual combat operation. It is related to the standardization of KUMITE that competes for superficial touch. I want to explain what disappeared as an example of "SAIFA". 

"Mae Geri" in "SAIFA".
The manual for the beginner explains this operation as "Kinteki-Geri". However, it is not such a simple technique.

This Keri is the technique for inserting the tiptoe in enemy's vital point at the same time as Mae Geri.
The old Karateka forged his tiptoe, and broke enemy's internal organs by his tiptoe,
It is the technique that had disappeared by compelling Shitei-kata.

The attack that screws the fist and the tiptoe into the enemy with the hit is the traditional method of Goju-Ryu and Nahate Karate .

Tuki is also similar. In traditional Gojuryu, when Tuki hit to the enemy,in addition Karateka screw his fist in the enemy's body by the shoulder movement.Shihan of Goluryu had taught the method of Tuki like that before about 40 years. The Tuki should be an attack that aims at enemy's spine. Such guidance disappeared by standardizing WKF now.。

In Shiteikata, the hand that grips enemy's hair is expressed as "Kakete". But this was operation that the assailant originally hung enemy's topknot by two fingers.

It is necessary to return it to former operation from the viewpoint of the succession of a historical, cultural value.