In the wet, the 595-SS i found up front in the wet are adequate. Under hard straight line braking coped better under hard braking that the old Eagle F1 I had, and wet cornering seems to understeer a little less. (this is after they've been run in, as the first 1000kms they are very average grip wise).
The rears however, I found they did not cope with the 250rwkw the car makes and so would be prone to traction loss in the wet. Like anything you get what you pay for, but the Federals in my opinion out perform their price by a long shot.
I used to run bridgestone s03's and they had amazing grip, but ended up being 3x the price of the 595SS.
If you're not driving stupidly in the wet, I found the 595SS was overall a decent tyre, with enough braking grip to keep you out of trouble in the event of some unavoidable stickier situations
The AD08 is a FANTASTIC tyre for track and it is what we ran on the Gorilla Industries Supra last year at World Time Attack Challenge last year. The dry grip and lateral grip really is 2nd to none when it comes to "street" rated tyres.
However, the price tag means we were paying a lot more per tyre than the RSR. The RSR is about 60% cost for the big ones (265/35/18 and 285/35/18), and as such, we're going with the 595RSR at this year's World Time Attack Challenge @ Eastern Creek.
If money is no object then by all means AD08. If you want a better bang for buck tyre, I still can't go past the 595RSR.
post edited by dylmrt - 2012/07/03 18:53:10