So this is our first year racing and we have ran a beginner predator class with no prep. Wanting to get into it alittle bit before the year ends to learn before next year. Can somebody explain exactly what prep does to a tire. Another thing is we don have rolling kart stands we just push them up from out pits maybe 40 ft would pushing it through the grass hurt our prep? From what I can understand is it just makes the tires softer but when I talk to people at the track and they go into detail it's almost like they are speaking another language I just don't understand. I'm extremely uneducated on this so talk to me like I'm 10.