I have only experienced the handling of tires like this twice. Both times before this it was because the tires were worn out. They chased every nook, crack and cranny on the road surface. These do it with more than 85-95% of the tread on them. They almost killed me in low to moderate snow. In fact when it comes to stability and holding the line you want to drive, my mini van with over 250,000 miles with all the original parts does light years better.
If this is the quality and performance of Cooper tires I will Never purchase a Cooper product again.