Like I stated above, you are refering him to something different. His issue is one that all of us SS 5 speed folks are familiar with. I read the link you put up. That link is NOT the issue he is talking about. You are refering him to a mechanical problem. Once again, that isn't his problem.
Not trying to sound nasty, but posting that link is pointing him in the wrong direction.
If you've ever driven a HHR SS w/5 speed,then you would know exactly what he's refering to.