Anyone tried these yet?

I will be looking to replace my R1R's soon. They are a great tyre but wear rate is not that good :( Then again, I have had them for over a year and used everyday, and one track day so maybe I am wrong.

The AD08's are a similar kind of tyre but speaking to a GT3 owner that has used these on several track days on one set and a load of normal driving, reckons they wear very well.

Other option is the Kumhoes...cheap and dirty, but I may slap a set on my spare track wheels and see how they go. What's the stiffness of the side walls like with these? They wallowy at all?