Not the best news for some of us - certainly the value of Jon Ward's assets has taken a hit.
We have been looking at the AD08 for the last half of 2011, and have spoken to a couple of competitors in other championships who use them, particularly one of the Westfield guys.
The view seems to be that, although they give good mechanical grip, they have stiff sidewalls, and may suit heavier cars better. Certainly, they may require a reduction in negative camber, so they aren't a simple swap.
Oh well, c'est la vie.
Paul