You're probably right, interventions tend not to work with personality disorders.
People are amazing, unfortunately often in a very disappointing way. He's ensured that no one in their right mind would ever show him anything of substance. Which is fine, but it lessens the value of the forum for others by ensuring that people take the most productive discussions somewhere private.
Chris, if you're interested I wrote a couple of articles here describing the basis for the upper body connections (the cross, as ark calls it) in the training section of this forum. It's called "Training the Body for Martial Movement" and "Training the Body for Martial Movement 2: Exercises". Give'em a read and let me know where you think we overlap
FWIW no one's looking to hang you out here. It's all good to bicker and yell, a lot of information exchange happens as a result