anyone that has driven a Late Model will tell you what I'm gonna say.
anatomy of a dirt track conditions:
from warm ups to A-Main
WET: sloppy wet, slim no traction at all.
TACKY: after the track has been ironed in, very sticky mud will pull your shoes right off.
DRY: decent traction very dusty, people in the stands hate this type track.
DRY SLICK: this is where the tires polish the main groove, slick as ice, most drivers will move out of the slick area.
BLACK SLICK: this is after everybody moves out of the slick and now the entire track is dry slick and no cushin is left.
RUBBERED: this is after black slick occures, this usually takes at least 50 laps or more usually cars with soft compound tires like lates or sprint cars. once the track is slick the tires heat up the air pressure goes from 12 to 30 and starts laying down rubber from bottom to top, lap times get way faster and the car starts getting tighter you are now taking out left rear weight that you dialed in 20 laps earlier and you turning the brake bias left now and adding rear brake to help the car turn under braking. the track picture above is a good example of a rubber track not dry slick. when the track takes rubber everybody goes fast untill the car pushes off the track or you twist the transmission off the bellhousing. being tight on a rubbered track is the worst thing that could ever happen.