Alignment: long time coming -> short answer.

After too many failed attempts at inde shops, I made an appointment with the local MB, Porsche, Audi dealer.

$75 and my e320 Wagon is driving true. Although it's at the edge of some specs, the cause was frozen ball joint and control arm bushing.

Some of the credit goes to whoever suggested going to the man who has to align the 911 series Porsche. To paraphrase Mr. Midddlecamp of Knopf MB, Porsche, Audi - "once your get the front aligned, the rear end is where the action is."

Bob