[John Rogers]

Well if you completely trust the shop that is fine, I still have the shop that has taken care of our Porsche collection for nearly 20 years give me a list of all the settings. Having said that, my best guess is a bent strut or that the spindle angle to the strut tube on both sides is not equal, That will cause a wandering condition when turning. Also if the front of one on the torsion bar mounts has been dented up, then turing will be affected so I would suggest doing some dissassembly and measuring. I would also look closely at the front and rear bushings as one might be failing.