I'm not sure what the solution is but what they are doing for track prep certainly isn't working. You are right, the surface IS nice and smooth, may be for the first time in the 49 years I've been going there, but the track is dry slick before group 4 of hot laps hits the track. It's like it's 1975 and it's Sunday afternoon again. At least back then, they would water the tar out of the top and get it so it had a cushion off the wall.