IMHO
If you want self defense that you can use in a short amount of time, take an 8 week SD course. Ears, eyes, nose, throat, solar plexus, groin, knee and related technique for each.
IMHO contunued,
Martial arts have their roots in China. The Chinese concept was not to open a dojo on every block, but, to pass the arts down to their family off spring at a very young age. By the time the little protagees reached adulthood they had 20 years of focused instruction.
In Okinawa after many visits back to China, the Okinawans took what they had learned and added it to their own form of fighting and the inception of Okinawan GoJu was formulated. To preserve this information a few kata were invented, namely, Sanchin and Tensho.
Goju meaning hard/soft, related to the hard Sanchin kata, the first kata learned. On the other end of the spectrum was Tensho with it's outward apearance of fluidity and flowing open hand techniques. I fear I am digressing so I will move on.
When the arts moved to Japan from Okinawa, it was seen as a exceliant means of transferring a sense of discipline to the education systen there, but needed a little toning down. This toning down consisted of diluting the kata to a punch, kick and block system, which was very conducive to competition (tournaments).
I know I condenced a lot of the happenings over many years. My hope here is that we can realilize IMHO that a lot of the issues brought up throughout this thread, "static training/chambering hand/twisting hips, are just a glimps of what lies just below the surface of the base of all Martial Arts, and that is KATA.
I will condense it even more by leaving you with this conclusion.
Hard becomes "fluid", big moves used for training "become small" for self defense, while striving to mantain that feeling of the big moves. Static training is only a means and by product of tournament endeavors.
All the above of course IMHO :asian: