I have only ran two CT since going to the Darkside. My first was the Alpine which I only ran a couple of them. I then switched to the Yokohoma AVID ENVIGOR ZPS and I really like it. I have just put my sixth one on the bike. In my opinion the Yoko feels a little more rounded than the Alpine but the Alpine had a slightly softer feel. My problem with the Alpine was when it was pushed hard in the twisties. I like the Yoko well enough that I will have a hard time switching unless it is discontinued.
Yokohama Avid Envigor ZPS
Leader of the first Darkside Ride-in