In my spare time over the years I have tried to work out what a perfect system could be.
One of my ideas is that a perfect system could be built upon the concept of using turns as weapons. And to me that system could built on the application potential contained within 2 kata. The Isshinryu Chinto and the Goju Seipai kata. I did a great deal of research on those possibilities. But after all the system I was teaching was also perfect to me. There is not one perfect answer, there are a multitude of perfect answers.
Young Lee and Mike Cassidy performing dual Isshinryu Chinto
Miyagi Tatuhiko Seipai