i had no issues in snow with the CS3's, even though i tried my chances hard, i got stuck only once (over one foot of snow in WV - it wasnt the tires fault, my car literally sat on snow and my rear tires was not touching the ground
) However i cant tell the same for the PS2's. winter with PS2's it was a nightmare, so i got a set of dunlop 3d winter/snow tires for this season.