Never tried the Conti DWS..how are they in the dry? better then the V12?
I unfortunately have not tried the V12 either, so i would not be at liberty to directly compare them. However I can pretty conclusively tell you that the grip is phenominal for a all season. During the last few weeks we have had really wet weather and the car has gripped admirably.
The side walls feel consistant with the stockers, stiff but not bone jarring. Most reviews about the tire seem to be consistant with the 50,000 mile rating they report.
http://www.youtube.com/watch?v=CVgVbivPBKQ