I agree. All those Shihan (and others I did not mention)selflessly trained with O'Sensei, receiving the isshin-den-shin, mind transmission, for future generations. But each one does technique and teaches it differently. Why? Then it is my understanding that Eugene doesn't feel we are sticking to tradition or traditional technique. Well, as I said, what tradtion are we talking about? Post war Aikido had the most variations. Before that, kata was the method of transmission; little to no variations. In order to catalog the technique, the late Doshu systemized Aikido removing the more dangerous techniques. From there we have something that is similar to what everybody trains in today.
In this forum, are we focusing on technical transmission? That has been my interpretation. If that's not it, please forgive my lack of attention.