The CC3 sound interesting, I have CC2 and they seem vague at times, the tread is very soft and sometimes it feels as if the tread is steering the car rather than the steering wheel.

 

I can't say that I have felt that, the tread has been modified slightly now giving it a central longitudinal groove which may help.
They were fitted only a few days before our trip so I only have about 2k miles of data to assess them by. I have driven them in wet & dry conditions, very wet on the motorway near Glasgow, at not time did I feel a lack of grip or an unwillingness to turn in.
There is also a sport version now which is supposed to be better all round.

 

Before the CC's I swapped wheels twice a year and used sixteen inch wheels and Michelin Alpins in the winter, they were superb it was almost impossible to make them loose grip and the sixteen inch wheels vastly improved the ride. I changed to CC's to stay on sixteen inch wheels all year round as on the sixteens the ride is much better and handling is the same.