We'll get back to the Shoulder series when I'm back stateside. I'm about to get a quick workout in before showering up & hopping on the plane, but I just saw this article, and I think it sums up a lot of what's at issue with a lot of the world.
We do it in our training, too. We're too quick to allow errors in form or compensations to slide under the radar. And with each successive rep, we "add strength to dysfunction"... allowing our stubbornness to be substituted for sensibility.
Remember what Ohshima Sensei said about having the strength, honesty, and courage to look inside and cut out one's weaknesses? Let's get back to that... HARD STYLE!