Re: Roadster needs Help, excessive tire wear
Could be a steering stabilizer issue (if you search for it, you will find it. I think 'NeverEnough' may have started the thread).
I've got ~6,450 miles on my Contis (and the car) and they have worn great.
I did get caught out in the rain once (Woodward 2007) and they performed horribly IMO.
Good luck.