odd steering problems updates
So I whimped out and took the car into the dealer for service. It is 20 degrees out and I just can't get out there to fix it like I used to.
They come up with bad center link and idler arm and tires cupped as likely resultant. I say ok since they are the only 2 things I haven't replaced. Results excellent. Still a little shimmy, shutter but the car is a joy to drive again. More later on the reasons why the e28 M5 is the perfect car for me.