Sgt. Slaphead - Katas dont develop attributes, randori/sparring does.....Because of resistance! Resistance is lacking in kata. Innthe case of bjj/gjj SD techiniques, doing by rote series of moves doesn't develop any skills or attribute, it is our resistive method of trainjng n g that does.
Which is why i stated in other thread that IMO SD&VT are intimately linked in the development of FIGHTING ASPECT OF JIUJITSU.
Maybe you right...WTF do i know.
This post made me think of the text book way to perform a technique, and adaptations that work better in real randori. I remember being taught Osoto Gari in Judo, supposedly the traditional way it is taught. Then I remember Rickson teaching my class his Osoto Gari, which seemed like a practical derivation, where he seems to rest his leg on the opponents leg before the sweeping motion.
I guess you could say in some sense that Judio kata is based on the traditional move, but in order to make the move work, you might need a practical derivation.
I remember a guy who trained Judo up at I think UCSC, and he taught me his derivation of the Ippon Seonage, by grabbing the opponents GI at his chest to set up the throw, instead of grabbing the arm.