Nice article.
The only person I have ever met who
popped my abdomen is Terry Ezra Sensei in the UK, who has been doing exactly the kind of stuff in that article as long as I can remember. And the only other people I have met with something
special do not do Aikido. It is nothing new. What is new is that people are beginning to realise that they may have spent their entire Aikido life barking up the wrong tree.