It is easy to talk about openings, but really only very few know what an opening or opportunity truly is. No matter which type of kumite, when two opponents become accustomed to one another, they will learn to control their power and it will be very hard to find an opening, thus a final decisive blow becomes almost impossible.
you become one with the opponent and move naturally with him, without opposition,
there is no reason to strike first. The meaning of Karate ni sente nashi
(There is no first strike in Karate) cannot be understood if this state is not
Shotokai Encyclopedia Index