In another thread it was suggested that somehow the applications of Goju Ryu have been "lost to time", in particular grappling applications. While I would first of all dispute personally that any form of Karate is a primary grappling system, it has not been my experience at all that Goju Ryu fighting applications are lost, grappling or otherwise. In fact, if anything my training in Goju Ryu has involved a more significant amount of grappling than Shorin Ryu did. Both my Goju Ryu teachers have been competitive Judoka, and cross training has a bit of history in Goju Ryu.
That said, any Karateka that wants to understand grappling on it's own terms should probably learn to grapple, to some degree. Kata cannot teach principles of grappling by itself, and from my perspectie, if we want to understand grappling principles in Kata, likely we first need basic experiential knowledge of grappling.
Anyway, I thought it would be interesting to post a few videos of Taira Masaji, Morio Hiagonna, Kris Wilder, and Paul Enfield, and Iain to compare, and to show that in fact, the applications of the Goju Ryu kata are not lost. This is the first time I have heard a statement like this, and found it a bit surprising. For sure, certain aspects of training are continually being lost and need to be refreshed and given new life by practitioners, with a critical and unflinching eye. However, I would make the case that Goju is a fairly uniform system as Karate styles go, and that there a few people out there teaching applications consistent with it's principles.
Further, I would also submit that understanding Goju Ryu application simply requires understanding principles of both Kata and the strategy of Karate in a larger sense, not neccessarily catalouging of specific techiques. I'm guessing this is why Iain can pick up a Goju Ryu kata, figure it out, and have a functional and effecive bunkai. There is no special filing of techniques needed, more an understanding of the langauge of Kata, and a solid understanding of combative principles.
Further, I would argue that in these videos, there are different expressions of a fairly consisten set of principles. Not all of them will be to everyon'es liking of course, but I do see some common threads.