Reason for my post above:
I have been running 20 F & R on the street and thought OK but, others have said that's too low.
Just talked with Dennis Olthoff for his recommendation.
He says 20 for street perfect and no more than 25 for the track (says he is running 25 on the track and winning....too many people don't take into consideration the light weight of the car)
I now have 5,000+ miles and wear acceptible and even across the tread using 20 so 20 it is.
Steve P2125