Re: Ask sensei to demonstrate "at speed"?
The original poster posited a very important question. There are those amongst the higher ranks who have terrific form and know the techniques inside and out. And would have their asses handed to them in a real fight. Then there are those who may not have the form or know as many techniques but can take a punch and give it right back.
We often don't take the time to recognize this IMO.
Their are those who study aikido as a martial art with the emphasis on art. And those who study it as budo.
In this case, you happened to meet an artist who doesn't want his brushes broken.