Yes at city speeds I was shocked at the smoothness of the run flats.
I was sure I would hate them. They are great for the design at
However, as many have stated, when I get above 80mph on a
curve the hopping of the back wheels especially is a pain.
The car holds, and I dig with acceleration to see if they will
break lose. So far up to 100mph they hold.
I can only imagine the dw's have less hop with the more
smoothness and equal or better performance. Get what you
like. The only risk is a flat. imho.