Like its been stated many times before, its not about what you use its how you use it. Your not going to find speed in a bottle. If you look at the results from all the big races this year you will find one thing, all these different tire treatments run the same time on the track. Knopf, Nall, Simmons, Mullis, Scruggs, Dove, Chavous, Riggins, etc all use different tire treatments and all run within a few hundreths of each other on the track. The question you need to ask yourself is this, do you want to call Donnie for advice? Or do you want to call Jamie for advice?