Maybe your English expert has a point. I have 19s (Classic) on my 997 without PASM and I have felt from the beginning that the ride was unnecessarily hard, the tires loud, and the feel a little too grippy. The car feels well planted, but somehow unnatural--too much tire, too much rubber on the road. I am considering trying that stock 18s to see if the drive feels better. I hate to part with the Carrera classic 19s because they look so much better than the stock 18s.