Tyres for track

Same as most race car do with the tyres, give them a light scrubbing to get rid of the factory shine

Now your talking my language..
Just like F1 tires need a lap or so before you get the best performance out of them...

I was just reading this
http://www.lfgss.com/thread34941.html

I see what you mean.

I see how sand paper works.
But what does vinger do ???
alcohol on rubber ?? never done it to see what happens so i dont get how that works.. ????