It's been a long time since I went out to the track......... back then there was no such thing as dual compound treads and all the options we have now. We would use a different set of wheels with different rubber spooned on to each set; one set for the track and one for the road. It would seem that somewhere along the line there has to be too much of a compromise between what a track day tire can do and what a street tire should do. If it were me, I would rather have the choice of running a great street tire and then being able to switch out to great track tire. I'm still not sold on the notion of a do-it-all tire.